Home / 15,760.29-21,747.85-9,045.77

Finding the Fourth Proportional to 15,760.29, 21,747.85 and 9,045.77

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Solution

The fourth proportional to 15,760.29, 21,747.85 and 9,045.77 is: 12,482.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,760.29 : 21,747.85 = 9,045.77 : x
  2. Step 2: Convert to fraction form
    15,760.29/21,747.85 = 9,045.77/x
  3. Step 3: Cross multiply
    15,760.29x = 21,747.85 × 9,045.77
  4. Step 4: Simplify right side
    15,760.29x = 196,726,049.09
  5. Step 5: Solve for x
    x = 196,726,049.09/15,760.29
  6. Step 6: Final answer
    x = 12,482.39

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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.