Home / 10,304.19-15,431.50-9,787.41

Finding the Fourth Proportional to 10,304.19, 15,431.50 and 9,787.41

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Solution

The fourth proportional to 10,304.19, 15,431.50 and 9,787.41 is: 14,657.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,304.19 : 15,431.50 = 9,787.41 : x
  2. Step 2: Convert to fraction form
    10,304.19/15,431.50 = 9,787.41/x
  3. Step 3: Cross multiply
    10,304.19x = 15,431.50 × 9,787.41
  4. Step 4: Simplify right side
    10,304.19x = 151,034,417.42
  5. Step 5: Solve for x
    x = 151,034,417.42/10,304.19
  6. Step 6: Final answer
    x = 14,657.57

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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.