Home / 16,990.38-23,445.90-9,437.18

Finding the Fourth Proportional to 16,990.38, 23,445.90 and 9,437.18

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Solution

The fourth proportional to 16,990.38, 23,445.90 and 9,437.18 is: 13,022.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,990.38 : 23,445.90 = 9,437.18 : x
  2. Step 2: Convert to fraction form
    16,990.38/23,445.90 = 9,437.18/x
  3. Step 3: Cross multiply
    16,990.38x = 23,445.90 × 9,437.18
  4. Step 4: Simplify right side
    16,990.38x = 221,263,061.33
  5. Step 5: Solve for x
    x = 221,263,061.33/16,990.38
  6. Step 6: Final answer
    x = 13,022.84

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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.