Home / 13,471.68-20,210.32-5,680.56

Finding the Fourth Proportional to 13,471.68, 20,210.32 and 5,680.56

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Solution

The fourth proportional to 13,471.68, 20,210.32 and 5,680.56 is: 8,522.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,471.68 : 20,210.32 = 5,680.56 : x
  2. Step 2: Convert to fraction form
    13,471.68/20,210.32 = 5,680.56/x
  3. Step 3: Cross multiply
    13,471.68x = 20,210.32 × 5,680.56
  4. Step 4: Simplify right side
    13,471.68x = 114,805,935.38
  5. Step 5: Solve for x
    x = 114,805,935.38/13,471.68
  6. Step 6: Final answer
    x = 8,522.02

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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.