Home / 10,070.28-15,105.42-3,915.72

Finding the Fourth Proportional to 10,070.28, 15,105.42 and 3,915.72

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Solution

The fourth proportional to 10,070.28, 15,105.42 and 3,915.72 is: 5,873.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,070.28 : 15,105.42 = 3,915.72 : x
  2. Step 2: Convert to fraction form
    10,070.28/15,105.42 = 3,915.72/x
  3. Step 3: Cross multiply
    10,070.28x = 15,105.42 × 3,915.72
  4. Step 4: Simplify right side
    10,070.28x = 59,148,595.20
  5. Step 5: Solve for x
    x = 59,148,595.20/10,070.28
  6. Step 6: Final answer
    x = 5,873.58

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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.