Home / 16,290.64-22,479.18-9,120.94

Finding the Fourth Proportional to 16,290.64, 22,479.18 and 9,120.94

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Solution

The fourth proportional to 16,290.64, 22,479.18 and 9,120.94 is: 12,585.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,290.64 : 22,479.18 = 9,120.94 : x
  2. Step 2: Convert to fraction form
    16,290.64/22,479.18 = 9,120.94/x
  3. Step 3: Cross multiply
    16,290.64x = 22,479.18 × 9,120.94
  4. Step 4: Simplify right side
    16,290.64x = 205,031,252.03
  5. Step 5: Solve for x
    x = 205,031,252.03/16,290.64
  6. Step 6: Final answer
    x = 12,585.83

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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.