Home / 8,759.01-12,087.45-5,615.19

Finding the Fourth Proportional to 8,759.01, 12,087.45 and 5,615.19

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Solution

The fourth proportional to 8,759.01, 12,087.45 and 5,615.19 is: 7,748.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.01 : 12,087.45 = 5,615.19 : x
  2. Step 2: Convert to fraction form
    8,759.01/12,087.45 = 5,615.19/x
  3. Step 3: Cross multiply
    8,759.01x = 12,087.45 × 5,615.19
  4. Step 4: Simplify right side
    8,759.01x = 67,873,328.37
  5. Step 5: Solve for x
    x = 67,873,328.37/8,759.01
  6. Step 6: Final answer
    x = 7,748.97

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Half scale
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Double scale
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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.