Home / 17,781.59-26,666.64-9,887.87

Finding the Fourth Proportional to 17,781.59, 26,666.64 and 9,887.87

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Solution

The fourth proportional to 17,781.59, 26,666.64 and 9,887.87 is: 14,828.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,781.59 : 26,666.64 = 9,887.87 : x
  2. Step 2: Convert to fraction form
    17,781.59/26,666.64 = 9,887.87/x
  3. Step 3: Cross multiply
    17,781.59x = 26,666.64 × 9,887.87
  4. Step 4: Simplify right side
    17,781.59x = 263,676,336.32
  5. Step 5: Solve for x
    x = 263,676,336.32/17,781.59
  6. Step 6: Final answer
    x = 14,828.61

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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.