Home / 9,161.40-12,642.96-5,182.32

Finding the Fourth Proportional to 9,161.40, 12,642.96 and 5,182.32

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Solution

The fourth proportional to 9,161.40, 12,642.96 and 5,182.32 is: 7,151.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.40 : 12,642.96 = 5,182.32 : x
  2. Step 2: Convert to fraction form
    9,161.40/12,642.96 = 5,182.32/x
  3. Step 3: Cross multiply
    9,161.40x = 12,642.96 × 5,182.32
  4. Step 4: Simplify right side
    9,161.40x = 65,519,864.47
  5. Step 5: Solve for x
    x = 65,519,864.47/9,161.40
  6. Step 6: Final answer
    x = 7,151.73

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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.