Home / 11,019.26-15,206.38-6,543.20

Finding the Fourth Proportional to 11,019.26, 15,206.38 and 6,543.20

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Solution

The fourth proportional to 11,019.26, 15,206.38 and 6,543.20 is: 9,029.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,019.26 : 15,206.38 = 6,543.20 : x
  2. Step 2: Convert to fraction form
    11,019.26/15,206.38 = 6,543.20/x
  3. Step 3: Cross multiply
    11,019.26x = 15,206.38 × 6,543.20
  4. Step 4: Simplify right side
    11,019.26x = 99,498,385.62
  5. Step 5: Solve for x
    x = 99,498,385.62/11,019.26
  6. Step 6: Final answer
    x = 9,029.50

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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.