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Finding the Fourth Proportional to 26,690.80, 40,037.04 and 9,160.40

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Solution

The fourth proportional to 26,690.80, 40,037.04 and 9,160.40 is: 13,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,690.80 : 40,037.04 = 9,160.40 : x
  2. Step 2: Convert to fraction form
    26,690.80/40,037.04 = 9,160.40/x
  3. Step 3: Cross multiply
    26,690.80x = 40,037.04 × 9,160.40
  4. Step 4: Simplify right side
    26,690.80x = 366,755,301.22
  5. Step 5: Solve for x
    x = 366,755,301.22/26,690.80
  6. Step 6: Final answer
    x = 13,740.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.