Home / 7,479.19-11,218.80-5,132.08

Finding the Fourth Proportional to 7,479.19, 11,218.80 and 5,132.08

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Solution

The fourth proportional to 7,479.19, 11,218.80 and 5,132.08 is: 7,698.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,479.19 : 11,218.80 = 5,132.08 : x
  2. Step 2: Convert to fraction form
    7,479.19/11,218.80 = 5,132.08/x
  3. Step 3: Cross multiply
    7,479.19x = 11,218.80 × 5,132.08
  4. Step 4: Simplify right side
    7,479.19x = 57,575,800.62
  5. Step 5: Solve for x
    x = 57,575,800.62/7,479.19
  6. Step 6: Final answer
    x = 7,698.13

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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.