Home / 13,702.11-20,551.55-3,842.18

Finding the Fourth Proportional to 13,702.11, 20,551.55 and 3,842.18

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Solution

The fourth proportional to 13,702.11, 20,551.55 and 3,842.18 is: 5,762.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.11 : 20,551.55 = 3,842.18 : x
  2. Step 2: Convert to fraction form
    13,702.11/20,551.55 = 3,842.18/x
  3. Step 3: Cross multiply
    13,702.11x = 20,551.55 × 3,842.18
  4. Step 4: Simplify right side
    13,702.11x = 78,962,754.38
  5. Step 5: Solve for x
    x = 78,962,754.38/13,702.11
  6. Step 6: Final answer
    x = 5,762.82

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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.