Home / 9,161.24-12,642.40-5,182.32

Finding the Fourth Proportional to 9,161.24, 12,642.40 and 5,182.32

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Solution

The fourth proportional to 9,161.24, 12,642.40 and 5,182.32 is: 7,151.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,161.24 : 12,642.40 = 5,182.32 : x
  2. Step 2: Convert to fraction form
    9,161.24/12,642.40 = 5,182.32/x
  3. Step 3: Cross multiply
    9,161.24x = 12,642.40 × 5,182.32
  4. Step 4: Simplify right side
    9,161.24x = 65,516,962.37
  5. Step 5: Solve for x
    x = 65,516,962.37/9,161.24
  6. Step 6: Final answer
    x = 7,151.54

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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.