Home / 15,439.10-21,304.85-9,065.95

Finding the Fourth Proportional to 15,439.10, 21,304.85 and 9,065.95

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Solution

The fourth proportional to 15,439.10, 21,304.85 and 9,065.95 is: 12,510.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,439.10 : 21,304.85 = 9,065.95 : x
  2. Step 2: Convert to fraction form
    15,439.10/21,304.85 = 9,065.95/x
  3. Step 3: Cross multiply
    15,439.10x = 21,304.85 × 9,065.95
  4. Step 4: Simplify right side
    15,439.10x = 193,148,606.27
  5. Step 5: Solve for x
    x = 193,148,606.27/15,439.10
  6. Step 6: Final answer
    x = 12,510.36

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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.