Home / 8,519.02-12,757.12-5,389.58

Finding the Fourth Proportional to 8,519.02, 12,757.12 and 5,389.58

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Solution

The fourth proportional to 8,519.02, 12,757.12 and 5,389.58 is: 8,070.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,519.02 : 12,757.12 = 5,389.58 : x
  2. Step 2: Convert to fraction form
    8,519.02/12,757.12 = 5,389.58/x
  3. Step 3: Cross multiply
    8,519.02x = 12,757.12 × 5,389.58
  4. Step 4: Simplify right side
    8,519.02x = 68,755,518.81
  5. Step 5: Solve for x
    x = 68,755,518.81/8,519.02
  6. Step 6: Final answer
    x = 8,070.82

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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.