Home / 8,987.64-12,403.17-5,451.18

Finding the Fourth Proportional to 8,987.64, 12,403.17 and 5,451.18

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Solution

The fourth proportional to 8,987.64, 12,403.17 and 5,451.18 is: 7,522.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,987.64 : 12,403.17 = 5,451.18 : x
  2. Step 2: Convert to fraction form
    8,987.64/12,403.17 = 5,451.18/x
  3. Step 3: Cross multiply
    8,987.64x = 12,403.17 × 5,451.18
  4. Step 4: Simplify right side
    8,987.64x = 67,611,912.24
  5. Step 5: Solve for x
    x = 67,611,912.24/8,987.64
  6. Step 6: Final answer
    x = 7,522.77

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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.