Home / 14,988.32-20,684.81-8,616.95

Finding the Fourth Proportional to 14,988.32, 20,684.81 and 8,616.95

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Solution

The fourth proportional to 14,988.32, 20,684.81 and 8,616.95 is: 11,891.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.32 : 20,684.81 = 8,616.95 : x
  2. Step 2: Convert to fraction form
    14,988.32/20,684.81 = 8,616.95/x
  3. Step 3: Cross multiply
    14,988.32x = 20,684.81 × 8,616.95
  4. Step 4: Simplify right side
    14,988.32x = 178,239,973.53
  5. Step 5: Solve for x
    x = 178,239,973.53/14,988.32
  6. Step 6: Final answer
    x = 11,891.92

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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.