Home / 8,290.65-11,445.01-5,308.22

Finding the Fourth Proportional to 8,290.65, 11,445.01 and 5,308.22

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Solution

The fourth proportional to 8,290.65, 11,445.01 and 5,308.22 is: 7,327.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,290.65 : 11,445.01 = 5,308.22 : x
  2. Step 2: Convert to fraction form
    8,290.65/11,445.01 = 5,308.22/x
  3. Step 3: Cross multiply
    8,290.65x = 11,445.01 × 5,308.22
  4. Step 4: Simplify right side
    8,290.65x = 60,752,611.80
  5. Step 5: Solve for x
    x = 60,752,611.80/8,290.65
  6. Step 6: Final answer
    x = 7,327.84

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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.