Home / 9,151.20-13,739.60-5,695.20

Finding the Fourth Proportional to 9,151.20, 13,739.60 and 5,695.20

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Solution

The fourth proportional to 9,151.20, 13,739.60 and 5,695.20 is: 8,550.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.20 : 13,739.60 = 5,695.20 : x
  2. Step 2: Convert to fraction form
    9,151.20/13,739.60 = 5,695.20/x
  3. Step 3: Cross multiply
    9,151.20x = 13,739.60 × 5,695.20
  4. Step 4: Simplify right side
    9,151.20x = 78,249,769.92
  5. Step 5: Solve for x
    x = 78,249,769.92/9,151.20
  6. Step 6: Final answer
    x = 8,550.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.