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Finding the Fourth Proportional to 8,472.48, 11,691.52 and 4,746.40

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Solution

The fourth proportional to 8,472.48, 11,691.52 and 4,746.40 is: 6,549.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.48 : 11,691.52 = 4,746.40 : x
  2. Step 2: Convert to fraction form
    8,472.48/11,691.52 = 4,746.40/x
  3. Step 3: Cross multiply
    8,472.48x = 11,691.52 × 4,746.40
  4. Step 4: Simplify right side
    8,472.48x = 55,492,630.53
  5. Step 5: Solve for x
    x = 55,492,630.53/8,472.48
  6. Step 6: Final answer
    x = 6,549.75

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