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Finding the Fourth Proportional to 8,875.52, 12,259.12 and 6,647.35

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Solution

The fourth proportional to 8,875.52, 12,259.12 and 6,647.35 is: 9,181.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,875.52 : 12,259.12 = 6,647.35 : x
  2. Step 2: Convert to fraction form
    8,875.52/12,259.12 = 6,647.35/x
  3. Step 3: Cross multiply
    8,875.52x = 12,259.12 × 6,647.35
  4. Step 4: Simplify right side
    8,875.52x = 81,490,661.33
  5. Step 5: Solve for x
    x = 81,490,661.33/8,875.52
  6. Step 6: Final answer
    x = 9,181.51

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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.