Home / 26,666.48-40,011.24-9,138.80

Finding the Fourth Proportional to 26,666.48, 40,011.24 and 9,138.80

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Solution

The fourth proportional to 26,666.48, 40,011.24 and 9,138.80 is: 13,712.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,666.48 : 40,011.24 = 9,138.80 : x
  2. Step 2: Convert to fraction form
    26,666.48/40,011.24 = 9,138.80/x
  3. Step 3: Cross multiply
    26,666.48x = 40,011.24 × 9,138.80
  4. Step 4: Simplify right side
    26,666.48x = 365,654,720.11
  5. Step 5: Solve for x
    x = 365,654,720.11/26,666.48
  6. Step 6: Final answer
    x = 13,712.15

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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.