Home / 9,161.80-12,643.27-5,182.81

Finding the Fourth Proportional to 9,161.80, 12,643.27 and 5,182.81

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Solution

The fourth proportional to 9,161.80, 12,643.27 and 5,182.81 is: 7,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.80 : 12,643.27 = 5,182.81 : x
  2. Step 2: Convert to fraction form
    9,161.80/12,643.27 = 5,182.81/x
  3. Step 3: Cross multiply
    9,161.80x = 12,643.27 × 5,182.81
  4. Step 4: Simplify right side
    9,161.80x = 65,527,621.62
  5. Step 5: Solve for x
    x = 65,527,621.62/9,161.80
  6. Step 6: Final answer
    x = 7,152.27

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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.