Home / 9,319.05-12,860.60-5,340.92

Finding the Fourth Proportional to 9,319.05, 12,860.60 and 5,340.92

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Solution

The fourth proportional to 9,319.05, 12,860.60 and 5,340.92 is: 7,370.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.05 : 12,860.60 = 5,340.92 : x
  2. Step 2: Convert to fraction form
    9,319.05/12,860.60 = 5,340.92/x
  3. Step 3: Cross multiply
    9,319.05x = 12,860.60 × 5,340.92
  4. Step 4: Simplify right side
    9,319.05x = 68,687,344.74
  5. Step 5: Solve for x
    x = 68,687,344.74/9,319.05
  6. Step 6: Final answer
    x = 7,370.64

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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.