Home / 16,289.44-22,479.45-9,215.71

Finding the Fourth Proportional to 16,289.44, 22,479.45 and 9,215.71

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Solution

The fourth proportional to 16,289.44, 22,479.45 and 9,215.71 is: 12,717.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,289.44 : 22,479.45 = 9,215.71 : x
  2. Step 2: Convert to fraction form
    16,289.44/22,479.45 = 9,215.71/x
  3. Step 3: Cross multiply
    16,289.44x = 22,479.45 × 9,215.71
  4. Step 4: Simplify right side
    16,289.44x = 207,164,001.40
  5. Step 5: Solve for x
    x = 207,164,001.40/16,289.44
  6. Step 6: Final answer
    x = 12,717.69

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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.