Home / 9,170.43-12,655.04-4,978.59

Finding the Fourth Proportional to 9,170.43, 12,655.04 and 4,978.59

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Solution

The fourth proportional to 9,170.43, 12,655.04 and 4,978.59 is: 6,870.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,170.43 : 12,655.04 = 4,978.59 : x
  2. Step 2: Convert to fraction form
    9,170.43/12,655.04 = 4,978.59/x
  3. Step 3: Cross multiply
    9,170.43x = 12,655.04 × 4,978.59
  4. Step 4: Simplify right side
    9,170.43x = 63,004,230.70
  5. Step 5: Solve for x
    x = 63,004,230.70/9,170.43
  6. Step 6: Final answer
    x = 6,870.37

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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.