Home / 16,787.78-23,165.30-9,712.88

Finding the Fourth Proportional to 16,787.78, 23,165.30 and 9,712.88

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Solution

The fourth proportional to 16,787.78, 23,165.30 and 9,712.88 is: 13,402.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,787.78 : 23,165.30 = 9,712.88 : x
  2. Step 2: Convert to fraction form
    16,787.78/23,165.30 = 9,712.88/x
  3. Step 3: Cross multiply
    16,787.78x = 23,165.30 × 9,712.88
  4. Step 4: Simplify right side
    16,787.78x = 225,001,779.06
  5. Step 5: Solve for x
    x = 225,001,779.06/16,787.78
  6. Step 6: Final answer
    x = 13,402.71

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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.