Home / 8,319.20-11,482.43-5,487.08

Finding the Fourth Proportional to 8,319.20, 11,482.43 and 5,487.08

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Solution

The fourth proportional to 8,319.20, 11,482.43 and 5,487.08 is: 7,573.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,319.20 : 11,482.43 = 5,487.08 : x
  2. Step 2: Convert to fraction form
    8,319.20/11,482.43 = 5,487.08/x
  3. Step 3: Cross multiply
    8,319.20x = 11,482.43 × 5,487.08
  4. Step 4: Simplify right side
    8,319.20x = 63,004,984.57
  5. Step 5: Solve for x
    x = 63,004,984.57/8,319.20
  6. Step 6: Final answer
    x = 7,573.44

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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.