Home / 14,988.40-20,684.16-8,273.90

Finding the Fourth Proportional to 14,988.40, 20,684.16 and 8,273.90

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Solution

The fourth proportional to 14,988.40, 20,684.16 and 8,273.90 is: 11,418.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,988.40 : 20,684.16 = 8,273.90 : x
  2. Step 2: Convert to fraction form
    14,988.40/20,684.16 = 8,273.90/x
  3. Step 3: Cross multiply
    14,988.40x = 20,684.16 × 8,273.90
  4. Step 4: Simplify right side
    14,988.40x = 171,138,723.13
  5. Step 5: Solve for x
    x = 171,138,723.13/14,988.40
  6. Step 6: Final answer
    x = 11,418.08

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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.