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Finding the Fourth Proportional to 8,741.03, 13,045.50 and 8,148.49

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Solution

The fourth proportional to 8,741.03, 13,045.50 and 8,148.49 is: 12,161.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,741.03 : 13,045.50 = 8,148.49 : x
  2. Step 2: Convert to fraction form
    8,741.03/13,045.50 = 8,148.49/x
  3. Step 3: Cross multiply
    8,741.03x = 13,045.50 × 8,148.49
  4. Step 4: Simplify right side
    8,741.03x = 106,301,093.68
  5. Step 5: Solve for x
    x = 106,301,093.68/8,741.03
  6. Step 6: Final answer
    x = 12,161.17

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Half scale
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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.