Home / 10,248.78-15,378.84-9,505.20

Finding the Fourth Proportional to 10,248.78, 15,378.84 and 9,505.20

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Solution

The fourth proportional to 10,248.78, 15,378.84 and 9,505.20 is: 14,263.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.78 : 15,378.84 = 9,505.20 : x
  2. Step 2: Convert to fraction form
    10,248.78/15,378.84 = 9,505.20/x
  3. Step 3: Cross multiply
    10,248.78x = 15,378.84 × 9,505.20
  4. Step 4: Simplify right side
    10,248.78x = 146,178,949.97
  5. Step 5: Solve for x
    x = 146,178,949.97/10,248.78
  6. Step 6: Final answer
    x = 14,263.06

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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.