Home / 14,475.12-19,976.40-8,189.52

Finding the Fourth Proportional to 14,475.12, 19,976.40 and 8,189.52

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Solution

The fourth proportional to 14,475.12, 19,976.40 and 8,189.52 is: 11,301.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,475.12 : 19,976.40 = 8,189.52 : x
  2. Step 2: Convert to fraction form
    14,475.12/19,976.40 = 8,189.52/x
  3. Step 3: Cross multiply
    14,475.12x = 19,976.40 × 8,189.52
  4. Step 4: Simplify right side
    14,475.12x = 163,597,127.33
  5. Step 5: Solve for x
    x = 163,597,127.33/14,475.12
  6. Step 6: Final answer
    x = 11,301.95

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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.