Home / 15,981.56-22,052.40-9,692.72

Finding the Fourth Proportional to 15,981.56, 22,052.40 and 9,692.72

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Solution

The fourth proportional to 15,981.56, 22,052.40 and 9,692.72 is: 13,374.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,981.56 : 22,052.40 = 9,692.72 : x
  2. Step 2: Convert to fraction form
    15,981.56/22,052.40 = 9,692.72/x
  3. Step 3: Cross multiply
    15,981.56x = 22,052.40 × 9,692.72
  4. Step 4: Simplify right side
    15,981.56x = 213,747,628.27
  5. Step 5: Solve for x
    x = 213,747,628.27/15,981.56
  6. Step 6: Final answer
    x = 13,374.65

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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.