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Finding the Fourth Proportional to 8,784.96, 12,124.32 and 5,248.16

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Solution

The fourth proportional to 8,784.96, 12,124.32 and 5,248.16 is: 7,243.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,784.96 : 12,124.32 = 5,248.16 : x
  2. Step 2: Convert to fraction form
    8,784.96/12,124.32 = 5,248.16/x
  3. Step 3: Cross multiply
    8,784.96x = 12,124.32 × 5,248.16
  4. Step 4: Simplify right side
    8,784.96x = 63,630,371.25
  5. Step 5: Solve for x
    x = 63,630,371.25/8,784.96
  6. Step 6: Final answer
    x = 7,243.10

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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.