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Finding the Fourth Proportional to 8,703.48, 12,006.57 and 5,164.19

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Solution

The fourth proportional to 8,703.48, 12,006.57 and 5,164.19 is: 7,124.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,703.48 : 12,006.57 = 5,164.19 : x
  2. Step 2: Convert to fraction form
    8,703.48/12,006.57 = 5,164.19/x
  3. Step 3: Cross multiply
    8,703.48x = 12,006.57 × 5,164.19
  4. Step 4: Simplify right side
    8,703.48x = 62,004,213.09
  5. Step 5: Solve for x
    x = 62,004,213.09/8,703.48
  6. Step 6: Final answer
    x = 7,124.07

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Half scale
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Double scale
Find fourth proportional to 8,704.48, 12,007.95 and 5,165.19
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.