Home / 26,618.54-39,916.12-9,966.90

Finding the Fourth Proportional to 26,618.54, 39,916.12 and 9,966.90

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Solution

The fourth proportional to 26,618.54, 39,916.12 and 9,966.90 is: 14,945.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,618.54 : 39,916.12 = 9,966.90 : x
  2. Step 2: Convert to fraction form
    26,618.54/39,916.12 = 9,966.90/x
  3. Step 3: Cross multiply
    26,618.54x = 39,916.12 × 9,966.90
  4. Step 4: Simplify right side
    26,618.54x = 397,839,918.54
  5. Step 5: Solve for x
    x = 397,839,918.54/26,618.54
  6. Step 6: Final answer
    x = 14,945.97

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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.