Home / 16,490.96-22,758.40-9,775.12

Finding the Fourth Proportional to 16,490.96, 22,758.40 and 9,775.12

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Solution

The fourth proportional to 16,490.96, 22,758.40 and 9,775.12 is: 13,490.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,490.96 : 22,758.40 = 9,775.12 : x
  2. Step 2: Convert to fraction form
    16,490.96/22,758.40 = 9,775.12/x
  3. Step 3: Cross multiply
    16,490.96x = 22,758.40 × 9,775.12
  4. Step 4: Simplify right side
    16,490.96x = 222,466,091.01
  5. Step 5: Solve for x
    x = 222,466,091.01/16,490.96
  6. Step 6: Final answer
    x = 13,490.18

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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.