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Finding the Fourth Proportional to 8,561.10, 12,841.65 and 4,176.30

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Solution

The fourth proportional to 8,561.10, 12,841.65 and 4,176.30 is: 6,264.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,561.10 : 12,841.65 = 4,176.30 : x
  2. Step 2: Convert to fraction form
    8,561.10/12,841.65 = 4,176.30/x
  3. Step 3: Cross multiply
    8,561.10x = 12,841.65 × 4,176.30
  4. Step 4: Simplify right side
    8,561.10x = 53,630,582.90
  5. Step 5: Solve for x
    x = 53,630,582.90/8,561.10
  6. Step 6: Final answer
    x = 6,264.45

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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.