Home / 12,831.92-17,708.10-7,526.84

Finding the Fourth Proportional to 12,831.92, 17,708.10 and 7,526.84

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Solution

The fourth proportional to 12,831.92, 17,708.10 and 7,526.84 is: 10,387.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,831.92 : 17,708.10 = 7,526.84 : x
  2. Step 2: Convert to fraction form
    12,831.92/17,708.10 = 7,526.84/x
  3. Step 3: Cross multiply
    12,831.92x = 17,708.10 × 7,526.84
  4. Step 4: Simplify right side
    12,831.92x = 133,286,035.40
  5. Step 5: Solve for x
    x = 133,286,035.40/12,831.92
  6. Step 6: Final answer
    x = 10,387.07

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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.