Home / 9,134.28-12,605.47-5,154.62

Finding the Fourth Proportional to 9,134.28, 12,605.47 and 5,154.62

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Solution

The fourth proportional to 9,134.28, 12,605.47 and 5,154.62 is: 7,113.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,134.28 : 12,605.47 = 5,154.62 : x
  2. Step 2: Convert to fraction form
    9,134.28/12,605.47 = 5,154.62/x
  3. Step 3: Cross multiply
    9,134.28x = 12,605.47 × 5,154.62
  4. Step 4: Simplify right side
    9,134.28x = 64,976,407.77
  5. Step 5: Solve for x
    x = 64,976,407.77/9,134.28
  6. Step 6: Final answer
    x = 7,113.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.