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Finding the Fourth Proportional to 8,540.10, 12,810.15 and 4,652.10

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Solution

The fourth proportional to 8,540.10, 12,810.15 and 4,652.10 is: 6,978.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,540.10 : 12,810.15 = 4,652.10 : x
  2. Step 2: Convert to fraction form
    8,540.10/12,810.15 = 4,652.10/x
  3. Step 3: Cross multiply
    8,540.10x = 12,810.15 × 4,652.10
  4. Step 4: Simplify right side
    8,540.10x = 59,594,098.82
  5. Step 5: Solve for x
    x = 59,594,098.82/8,540.10
  6. Step 6: Final answer
    x = 6,978.15

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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.