Home / 14,587.48-20,130.78-8,299.72

Finding the Fourth Proportional to 14,587.48, 20,130.78 and 8,299.72

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Solution

The fourth proportional to 14,587.48, 20,130.78 and 8,299.72 is: 11,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.48 : 20,130.78 = 8,299.72 : x
  2. Step 2: Convert to fraction form
    14,587.48/20,130.78 = 8,299.72/x
  3. Step 3: Cross multiply
    14,587.48x = 20,130.78 × 8,299.72
  4. Step 4: Simplify right side
    14,587.48x = 167,079,837.38
  5. Step 5: Solve for x
    x = 167,079,837.38/14,587.48
  6. Step 6: Final answer
    x = 11,453.65

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Half scale
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Double scale
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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.