Home / 12,559.80-18,839.70-3,325.80

Finding the Fourth Proportional to 12,559.80, 18,839.70 and 3,325.80

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Solution

The fourth proportional to 12,559.80, 18,839.70 and 3,325.80 is: 4,988.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.80 : 18,839.70 = 3,325.80 : x
  2. Step 2: Convert to fraction form
    12,559.80/18,839.70 = 3,325.80/x
  3. Step 3: Cross multiply
    12,559.80x = 18,839.70 × 3,325.80
  4. Step 4: Simplify right side
    12,559.80x = 62,657,074.26
  5. Step 5: Solve for x
    x = 62,657,074.26/12,559.80
  6. Step 6: Final answer
    x = 4,988.70

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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.