Home / 8,289.03-12,425.55-5,319.09

Finding the Fourth Proportional to 8,289.03, 12,425.55 and 5,319.09

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Solution

The fourth proportional to 8,289.03, 12,425.55 and 5,319.09 is: 7,973.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,289.03 : 12,425.55 = 5,319.09 : x
  2. Step 2: Convert to fraction form
    8,289.03/12,425.55 = 5,319.09/x
  3. Step 3: Cross multiply
    8,289.03x = 12,425.55 × 5,319.09
  4. Step 4: Simplify right side
    8,289.03x = 66,092,618.75
  5. Step 5: Solve for x
    x = 66,092,618.75/8,289.03
  6. Step 6: Final answer
    x = 7,973.50

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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.