Home / 10,831.93-16,220.45-7,318.15

Finding the Fourth Proportional to 10,831.93, 16,220.45 and 7,318.15

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Solution

The fourth proportional to 10,831.93, 16,220.45 and 7,318.15 is: 10,958.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,831.93 : 16,220.45 = 7,318.15 : x
  2. Step 2: Convert to fraction form
    10,831.93/16,220.45 = 7,318.15/x
  3. Step 3: Cross multiply
    10,831.93x = 16,220.45 × 7,318.15
  4. Step 4: Simplify right side
    10,831.93x = 118,703,663.91
  5. Step 5: Solve for x
    x = 118,703,663.91/10,831.93
  6. Step 6: Final answer
    x = 10,958.68

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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.