Home / 15,724.38-21,702.74-9,014.52

Finding the Fourth Proportional to 15,724.38, 21,702.74 and 9,014.52

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Solution

The fourth proportional to 15,724.38, 21,702.74 and 9,014.52 is: 12,441.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,724.38 : 21,702.74 = 9,014.52 : x
  2. Step 2: Convert to fraction form
    15,724.38/21,702.74 = 9,014.52/x
  3. Step 3: Cross multiply
    15,724.38x = 21,702.74 × 9,014.52
  4. Step 4: Simplify right side
    15,724.38x = 195,639,783.78
  5. Step 5: Solve for x
    x = 195,639,783.78/15,724.38
  6. Step 6: Final answer
    x = 12,441.81

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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.