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Finding the Fourth Proportional to 9,148.32, 12,624.03 and 5,169.18

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Solution

The fourth proportional to 9,148.32, 12,624.03 and 5,169.18 is: 7,133.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,148.32 : 12,624.03 = 5,169.18 : x
  2. Step 2: Convert to fraction form
    9,148.32/12,624.03 = 5,169.18/x
  3. Step 3: Cross multiply
    9,148.32x = 12,624.03 × 5,169.18
  4. Step 4: Simplify right side
    9,148.32x = 65,255,883.40
  5. Step 5: Solve for x
    x = 65,255,883.40/9,148.32
  6. Step 6: Final answer
    x = 7,133.10

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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.