Home / 16,170.90-22,315.10-9,001.18

Finding the Fourth Proportional to 16,170.90, 22,315.10 and 9,001.18

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Solution

The fourth proportional to 16,170.90, 22,315.10 and 9,001.18 is: 12,421.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,170.90 : 22,315.10 = 9,001.18 : x
  2. Step 2: Convert to fraction form
    16,170.90/22,315.10 = 9,001.18/x
  3. Step 3: Cross multiply
    16,170.90x = 22,315.10 × 9,001.18
  4. Step 4: Simplify right side
    16,170.90x = 200,862,231.82
  5. Step 5: Solve for x
    x = 200,862,231.82/16,170.90
  6. Step 6: Final answer
    x = 12,421.22

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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.