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Finding the Fourth Proportional to 8,484.54, 12,717.54 and 7,248.21

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Solution

The fourth proportional to 8,484.54, 12,717.54 and 7,248.21 is: 10,864.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,484.54 : 12,717.54 = 7,248.21 : x
  2. Step 2: Convert to fraction form
    8,484.54/12,717.54 = 7,248.21/x
  3. Step 3: Cross multiply
    8,484.54x = 12,717.54 × 7,248.21
  4. Step 4: Simplify right side
    8,484.54x = 92,179,400.60
  5. Step 5: Solve for x
    x = 92,179,400.60/8,484.54
  6. Step 6: Final answer
    x = 10,864.40

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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.