Home / 18,346.90-25,292.10-13,559.80

Finding the Fourth Proportional to 18,346.90, 25,292.10 and 13,559.80

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Solution

The fourth proportional to 18,346.90, 25,292.10 and 13,559.80 is: 18,692.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.90 : 25,292.10 = 13,559.80 : x
  2. Step 2: Convert to fraction form
    18,346.90/25,292.10 = 13,559.80/x
  3. Step 3: Cross multiply
    18,346.90x = 25,292.10 × 13,559.80
  4. Step 4: Simplify right side
    18,346.90x = 342,955,817.58
  5. Step 5: Solve for x
    x = 342,955,817.58/18,346.90
  6. Step 6: Final answer
    x = 18,692.85

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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.