Home / 11,545.38-15,929.73-6,831.18

Finding the Fourth Proportional to 11,545.38, 15,929.73 and 6,831.18

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Solution

The fourth proportional to 11,545.38, 15,929.73 and 6,831.18 is: 9,425.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.38 : 15,929.73 = 6,831.18 : x
  2. Step 2: Convert to fraction form
    11,545.38/15,929.73 = 6,831.18/x
  3. Step 3: Cross multiply
    11,545.38x = 15,929.73 × 6,831.18
  4. Step 4: Simplify right side
    11,545.38x = 108,818,852.98
  5. Step 5: Solve for x
    x = 108,818,852.98/11,545.38
  6. Step 6: Final answer
    x = 9,425.32

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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.