Home / 16,064.40-22,168.68-8,990.88

Finding the Fourth Proportional to 16,064.40, 22,168.68 and 8,990.88

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Solution

The fourth proportional to 16,064.40, 22,168.68 and 8,990.88 is: 12,407.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,064.40 : 22,168.68 = 8,990.88 : x
  2. Step 2: Convert to fraction form
    16,064.40/22,168.68 = 8,990.88/x
  3. Step 3: Cross multiply
    16,064.40x = 22,168.68 × 8,990.88
  4. Step 4: Simplify right side
    16,064.40x = 199,315,941.64
  5. Step 5: Solve for x
    x = 199,315,941.64/16,064.40
  6. Step 6: Final answer
    x = 12,407.31

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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.