Home / 8,820.60-12,172.47-4,841.76

Finding the Fourth Proportional to 8,820.60, 12,172.47 and 4,841.76

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Solution

The fourth proportional to 8,820.60, 12,172.47 and 4,841.76 is: 6,681.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,820.60 : 12,172.47 = 4,841.76 : x
  2. Step 2: Convert to fraction form
    8,820.60/12,172.47 = 4,841.76/x
  3. Step 3: Cross multiply
    8,820.60x = 12,172.47 × 4,841.76
  4. Step 4: Simplify right side
    8,820.60x = 58,936,178.35
  5. Step 5: Solve for x
    x = 58,936,178.35/8,820.60
  6. Step 6: Final answer
    x = 6,681.65

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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.