Home / 14,689.29-20,273.72-8,724.18

Finding the Fourth Proportional to 14,689.29, 20,273.72 and 8,724.18

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Solution

The fourth proportional to 14,689.29, 20,273.72 and 8,724.18 is: 12,040.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,689.29 : 20,273.72 = 8,724.18 : x
  2. Step 2: Convert to fraction form
    14,689.29/20,273.72 = 8,724.18/x
  3. Step 3: Cross multiply
    14,689.29x = 20,273.72 × 8,724.18
  4. Step 4: Simplify right side
    14,689.29x = 176,871,538.93
  5. Step 5: Solve for x
    x = 176,871,538.93/14,689.29
  6. Step 6: Final answer
    x = 12,040.85

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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.