Home / 15,933.42-21,985.56-8,859.69

Finding the Fourth Proportional to 15,933.42, 21,985.56 and 8,859.69

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Solution

The fourth proportional to 15,933.42, 21,985.56 and 8,859.69 is: 12,224.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,933.42 : 21,985.56 = 8,859.69 : x
  2. Step 2: Convert to fraction form
    15,933.42/21,985.56 = 8,859.69/x
  3. Step 3: Cross multiply
    15,933.42x = 21,985.56 × 8,859.69
  4. Step 4: Simplify right side
    15,933.42x = 194,785,246.08
  5. Step 5: Solve for x
    x = 194,785,246.08/15,933.42
  6. Step 6: Final answer
    x = 12,224.95

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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.