Home / 9,018.85-12,500.57-8,499.74

Finding the Fourth Proportional to 9,018.85, 12,500.57 and 8,499.74

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Solution

The fourth proportional to 9,018.85, 12,500.57 and 8,499.74 is: 11,781.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,018.85 : 12,500.57 = 8,499.74 : x
  2. Step 2: Convert to fraction form
    9,018.85/12,500.57 = 8,499.74/x
  3. Step 3: Cross multiply
    9,018.85x = 12,500.57 × 8,499.74
  4. Step 4: Simplify right side
    9,018.85x = 106,251,594.85
  5. Step 5: Solve for x
    x = 106,251,594.85/9,018.85
  6. Step 6: Final answer
    x = 11,781.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.