Home / 12,501.87-18,755.71-3,616.84

Finding the Fourth Proportional to 12,501.87, 18,755.71 and 3,616.84

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Solution

The fourth proportional to 12,501.87, 18,755.71 and 3,616.84 is: 5,426.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,501.87 : 18,755.71 = 3,616.84 : x
  2. Step 2: Convert to fraction form
    12,501.87/18,755.71 = 3,616.84/x
  3. Step 3: Cross multiply
    12,501.87x = 18,755.71 × 3,616.84
  4. Step 4: Simplify right side
    12,501.87x = 67,836,402.16
  5. Step 5: Solve for x
    x = 67,836,402.16/12,501.87
  6. Step 6: Final answer
    x = 5,426.10

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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.