Home / 9,231.29-12,739.86-5,253.68

Finding the Fourth Proportional to 9,231.29, 12,739.86 and 5,253.68

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Solution

The fourth proportional to 9,231.29, 12,739.86 and 5,253.68 is: 7,250.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,231.29 : 12,739.86 = 5,253.68 : x
  2. Step 2: Convert to fraction form
    9,231.29/12,739.86 = 5,253.68/x
  3. Step 3: Cross multiply
    9,231.29x = 12,739.86 × 5,253.68
  4. Step 4: Simplify right side
    9,231.29x = 66,931,083.99
  5. Step 5: Solve for x
    x = 66,931,083.99/9,231.29
  6. Step 6: Final answer
    x = 7,250.46

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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.