Home / 17,877.12-24,669.24-9,918.84

Finding the Fourth Proportional to 17,877.12, 24,669.24 and 9,918.84

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Solution

The fourth proportional to 17,877.12, 24,669.24 and 9,918.84 is: 13,687.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.12 : 24,669.24 = 9,918.84 : x
  2. Step 2: Convert to fraction form
    17,877.12/24,669.24 = 9,918.84/x
  3. Step 3: Cross multiply
    17,877.12x = 24,669.24 × 9,918.84
  4. Step 4: Simplify right side
    17,877.12x = 244,690,244.48
  5. Step 5: Solve for x
    x = 244,690,244.48/17,877.12
  6. Step 6: Final answer
    x = 13,687.34

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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.