Home / 13,520.61-20,279.70-9,588.72

Finding the Fourth Proportional to 13,520.61, 20,279.70 and 9,588.72

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Solution

The fourth proportional to 13,520.61, 20,279.70 and 9,588.72 is: 14,382.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,520.61 : 20,279.70 = 9,588.72 : x
  2. Step 2: Convert to fraction form
    13,520.61/20,279.70 = 9,588.72/x
  3. Step 3: Cross multiply
    13,520.61x = 20,279.70 × 9,588.72
  4. Step 4: Simplify right side
    13,520.61x = 194,456,364.98
  5. Step 5: Solve for x
    x = 194,456,364.98/13,520.61
  6. Step 6: Final answer
    x = 14,382.22

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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.