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Finding the Fourth Proportional to 8,275.30, 12,412.95 and 7,368.10

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Solution

The fourth proportional to 8,275.30, 12,412.95 and 7,368.10 is: 11,052.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.30 : 12,412.95 = 7,368.10 : x
  2. Step 2: Convert to fraction form
    8,275.30/12,412.95 = 7,368.10/x
  3. Step 3: Cross multiply
    8,275.30x = 12,412.95 × 7,368.10
  4. Step 4: Simplify right side
    8,275.30x = 91,459,856.90
  5. Step 5: Solve for x
    x = 91,459,856.90/8,275.30
  6. Step 6: Final answer
    x = 11,052.15

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Double scale
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Similar ratio
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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.