Home / 10,458.10-15,687.15-4,915.27

Finding the Fourth Proportional to 10,458.10, 15,687.15 and 4,915.27

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Solution

The fourth proportional to 10,458.10, 15,687.15 and 4,915.27 is: 7,372.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458.10 : 15,687.15 = 4,915.27 : x
  2. Step 2: Convert to fraction form
    10,458.10/15,687.15 = 4,915.27/x
  3. Step 3: Cross multiply
    10,458.10x = 15,687.15 × 4,915.27
  4. Step 4: Simplify right side
    10,458.10x = 77,106,577.78
  5. Step 5: Solve for x
    x = 77,106,577.78/10,458.10
  6. Step 6: Final answer
    x = 7,372.91

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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.