Home / 8,621.20-11,897.04-4,895.20

Finding the Fourth Proportional to 8,621.20, 11,897.04 and 4,895.20

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Solution

The fourth proportional to 8,621.20, 11,897.04 and 4,895.20 is: 6,755.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,621.20 : 11,897.04 = 4,895.20 : x
  2. Step 2: Convert to fraction form
    8,621.20/11,897.04 = 4,895.20/x
  3. Step 3: Cross multiply
    8,621.20x = 11,897.04 × 4,895.20
  4. Step 4: Simplify right side
    8,621.20x = 58,238,390.21
  5. Step 5: Solve for x
    x = 58,238,390.21/8,621.20
  6. Step 6: Final answer
    x = 6,755.25

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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.