Home / 10,007.42-15,012.81-3,432.02

Finding the Fourth Proportional to 10,007.42, 15,012.81 and 3,432.02

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Solution

The fourth proportional to 10,007.42, 15,012.81 and 3,432.02 is: 5,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,007.42 : 15,012.81 = 3,432.02 : x
  2. Step 2: Convert to fraction form
    10,007.42/15,012.81 = 3,432.02/x
  3. Step 3: Cross multiply
    10,007.42x = 15,012.81 × 3,432.02
  4. Step 4: Simplify right side
    10,007.42x = 51,524,189.11
  5. Step 5: Solve for x
    x = 51,524,189.11/10,007.42
  6. Step 6: Final answer
    x = 5,148.60

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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.