Home / 10,378.72-15,576.30-4,539.52

Finding the Fourth Proportional to 10,378.72, 15,576.30 and 4,539.52

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Solution

The fourth proportional to 10,378.72, 15,576.30 and 4,539.52 is: 6,812.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,378.72 : 15,576.30 = 4,539.52 : x
  2. Step 2: Convert to fraction form
    10,378.72/15,576.30 = 4,539.52/x
  3. Step 3: Cross multiply
    10,378.72x = 15,576.30 × 4,539.52
  4. Step 4: Simplify right side
    10,378.72x = 70,708,925.38
  5. Step 5: Solve for x
    x = 70,708,925.38/10,378.72
  6. Step 6: Final answer
    x = 6,812.88

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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.