Home / 9,721.29-14,599.50-8,939.85

Finding the Fourth Proportional to 9,721.29, 14,599.50 and 8,939.85

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Solution

The fourth proportional to 9,721.29, 14,599.50 and 8,939.85 is: 13,425.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,721.29 : 14,599.50 = 8,939.85 : x
  2. Step 2: Convert to fraction form
    9,721.29/14,599.50 = 8,939.85/x
  3. Step 3: Cross multiply
    9,721.29x = 14,599.50 × 8,939.85
  4. Step 4: Simplify right side
    9,721.29x = 130,517,258.88
  5. Step 5: Solve for x
    x = 130,517,258.88/9,721.29
  6. Step 6: Final answer
    x = 13,425.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.