Home / 8,759.06-12,087.51-5,615.25

Finding the Fourth Proportional to 8,759.06, 12,087.51 and 5,615.25

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Solution

The fourth proportional to 8,759.06, 12,087.51 and 5,615.25 is: 7,749.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.06 : 12,087.51 = 5,615.25 : x
  2. Step 2: Convert to fraction form
    8,759.06/12,087.51 = 5,615.25/x
  3. Step 3: Cross multiply
    8,759.06x = 12,087.51 × 5,615.25
  4. Step 4: Simplify right side
    8,759.06x = 67,874,390.53
  5. Step 5: Solve for x
    x = 67,874,390.53/8,759.06
  6. Step 6: Final answer
    x = 7,749.05

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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.