Home / 11,471.43-15,831.27-6,436.08

Finding the Fourth Proportional to 11,471.43, 15,831.27 and 6,436.08

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Solution

The fourth proportional to 11,471.43, 15,831.27 and 6,436.08 is: 8,882.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,471.43 : 15,831.27 = 6,436.08 : x
  2. Step 2: Convert to fraction form
    11,471.43/15,831.27 = 6,436.08/x
  3. Step 3: Cross multiply
    11,471.43x = 15,831.27 × 6,436.08
  4. Step 4: Simplify right side
    11,471.43x = 101,891,320.22
  5. Step 5: Solve for x
    x = 101,891,320.22/11,471.43
  6. Step 6: Final answer
    x = 8,882.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.