Home / 15,934.32-21,989.07-8,860.68

Finding the Fourth Proportional to 15,934.32, 21,989.07 and 8,860.68

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Solution

The fourth proportional to 15,934.32, 21,989.07 and 8,860.68 is: 12,227.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,934.32 : 21,989.07 = 8,860.68 : x
  2. Step 2: Convert to fraction form
    15,934.32/21,989.07 = 8,860.68/x
  3. Step 3: Cross multiply
    15,934.32x = 21,989.07 × 8,860.68
  4. Step 4: Simplify right side
    15,934.32x = 194,838,112.77
  5. Step 5: Solve for x
    x = 194,838,112.77/15,934.32
  6. Step 6: Final answer
    x = 12,227.58

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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.