Home / 7,432.56-11,139.06-4,147.20

Finding the Fourth Proportional to 7,432.56, 11,139.06 and 4,147.20

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Solution

The fourth proportional to 7,432.56, 11,139.06 and 4,147.20 is: 6,215.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,432.56 : 11,139.06 = 4,147.20 : x
  2. Step 2: Convert to fraction form
    7,432.56/11,139.06 = 4,147.20/x
  3. Step 3: Cross multiply
    7,432.56x = 11,139.06 × 4,147.20
  4. Step 4: Simplify right side
    7,432.56x = 46,195,909.63
  5. Step 5: Solve for x
    x = 46,195,909.63/7,432.56
  6. Step 6: Final answer
    x = 6,215.34

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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.