Home / 10,252.12-15,378.18-7,915.54

Finding the Fourth Proportional to 10,252.12, 15,378.18 and 7,915.54

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Solution

The fourth proportional to 10,252.12, 15,378.18 and 7,915.54 is: 11,873.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,252.12 : 15,378.18 = 7,915.54 : x
  2. Step 2: Convert to fraction form
    10,252.12/15,378.18 = 7,915.54/x
  3. Step 3: Cross multiply
    10,252.12x = 15,378.18 × 7,915.54
  4. Step 4: Simplify right side
    10,252.12x = 121,726,598.92
  5. Step 5: Solve for x
    x = 121,726,598.92/10,252.12
  6. Step 6: Final answer
    x = 11,873.31

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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.