Home / 12,545.49-18,831.86-9,434.41

Finding the Fourth Proportional to 12,545.49, 18,831.86 and 9,434.41

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Solution

The fourth proportional to 12,545.49, 18,831.86 and 9,434.41 is: 14,161.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,545.49 : 18,831.86 = 9,434.41 : x
  2. Step 2: Convert to fraction form
    12,545.49/18,831.86 = 9,434.41/x
  3. Step 3: Cross multiply
    12,545.49x = 18,831.86 × 9,434.41
  4. Step 4: Simplify right side
    12,545.49x = 177,667,488.30
  5. Step 5: Solve for x
    x = 177,667,488.30/12,545.49
  6. Step 6: Final answer
    x = 14,161.86

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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.