Home / 13,326.20-19,987.86-7,079.57

Finding the Fourth Proportional to 13,326.20, 19,987.86 and 7,079.57

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Solution

The fourth proportional to 13,326.20, 19,987.86 and 7,079.57 is: 10,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.20 : 19,987.86 = 7,079.57 : x
  2. Step 2: Convert to fraction form
    13,326.20/19,987.86 = 7,079.57/x
  3. Step 3: Cross multiply
    13,326.20x = 19,987.86 × 7,079.57
  4. Step 4: Simplify right side
    13,326.20x = 141,505,354.08
  5. Step 5: Solve for x
    x = 141,505,354.08/13,326.20
  6. Step 6: Final answer
    x = 10,618.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.