Home / 8,851.55-12,214.69-4,871.90

Finding the Fourth Proportional to 8,851.55, 12,214.69 and 4,871.90

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Solution

The fourth proportional to 8,851.55, 12,214.69 and 4,871.90 is: 6,722.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.55 : 12,214.69 = 4,871.90 : x
  2. Step 2: Convert to fraction form
    8,851.55/12,214.69 = 4,871.90/x
  3. Step 3: Cross multiply
    8,851.55x = 12,214.69 × 4,871.90
  4. Step 4: Simplify right side
    8,851.55x = 59,508,748.21
  5. Step 5: Solve for x
    x = 59,508,748.21/8,851.55
  6. Step 6: Final answer
    x = 6,722.97

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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.