Home / 9,154.32-12,631.46-5,376.68

Finding the Fourth Proportional to 9,154.32, 12,631.46 and 5,376.68

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Solution

The fourth proportional to 9,154.32, 12,631.46 and 5,376.68 is: 7,418.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,154.32 : 12,631.46 = 5,376.68 : x
  2. Step 2: Convert to fraction form
    9,154.32/12,631.46 = 5,376.68/x
  3. Step 3: Cross multiply
    9,154.32x = 12,631.46 × 5,376.68
  4. Step 4: Simplify right side
    9,154.32x = 67,915,318.35
  5. Step 5: Solve for x
    x = 67,915,318.35/9,154.32
  6. Step 6: Final answer
    x = 7,418.94

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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.