Home / 9,787.80-13,513.20-7,545.18

Finding the Fourth Proportional to 9,787.80, 13,513.20 and 7,545.18

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Solution

The fourth proportional to 9,787.80, 13,513.20 and 7,545.18 is: 10,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,787.80 : 13,513.20 = 7,545.18 : x
  2. Step 2: Convert to fraction form
    9,787.80/13,513.20 = 7,545.18/x
  3. Step 3: Cross multiply
    9,787.80x = 13,513.20 × 7,545.18
  4. Step 4: Simplify right side
    9,787.80x = 101,959,526.38
  5. Step 5: Solve for x
    x = 101,959,526.38/9,787.80
  6. Step 6: Final answer
    x = 10,417.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.