Home / 12,560.23-18,839.98-3,200.21

Finding the Fourth Proportional to 12,560.23, 18,839.98 and 3,200.21

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Solution

The fourth proportional to 12,560.23, 18,839.98 and 3,200.21 is: 4,800.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,560.23 : 18,839.98 = 3,200.21 : x
  2. Step 2: Convert to fraction form
    12,560.23/18,839.98 = 3,200.21/x
  3. Step 3: Cross multiply
    12,560.23x = 18,839.98 × 3,200.21
  4. Step 4: Simplify right side
    12,560.23x = 60,291,892.40
  5. Step 5: Solve for x
    x = 60,291,892.40/12,560.23
  6. Step 6: Final answer
    x = 4,800.22

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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.