Home / 10,471.37-15,707.07-2,680.20

Finding the Fourth Proportional to 10,471.37, 15,707.07 and 2,680.20

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Solution

The fourth proportional to 10,471.37, 15,707.07 and 2,680.20 is: 4,020.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,471.37 : 15,707.07 = 2,680.20 : x
  2. Step 2: Convert to fraction form
    10,471.37/15,707.07 = 2,680.20/x
  3. Step 3: Cross multiply
    10,471.37x = 15,707.07 × 2,680.20
  4. Step 4: Simplify right side
    10,471.37x = 42,098,089.01
  5. Step 5: Solve for x
    x = 42,098,089.01/10,471.37
  6. Step 6: Final answer
    x = 4,020.31

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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.