Home / 8,759.07-12,087.23-5,220.45

Finding the Fourth Proportional to 8,759.07, 12,087.23 and 5,220.45

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Solution

The fourth proportional to 8,759.07, 12,087.23 and 5,220.45 is: 7,204.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.07 : 12,087.23 = 5,220.45 : x
  2. Step 2: Convert to fraction form
    8,759.07/12,087.23 = 5,220.45/x
  3. Step 3: Cross multiply
    8,759.07x = 12,087.23 × 5,220.45
  4. Step 4: Simplify right side
    8,759.07x = 63,100,753.75
  5. Step 5: Solve for x
    x = 63,100,753.75/8,759.07
  6. Step 6: Final answer
    x = 7,204.05

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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.