Home / 13,222.29-18,246.87-7,253.91

Finding the Fourth Proportional to 13,222.29, 18,246.87 and 7,253.91

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Solution

The fourth proportional to 13,222.29, 18,246.87 and 7,253.91 is: 10,010.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,222.29 : 18,246.87 = 7,253.91 : x
  2. Step 2: Convert to fraction form
    13,222.29/18,246.87 = 7,253.91/x
  3. Step 3: Cross multiply
    13,222.29x = 18,246.87 × 7,253.91
  4. Step 4: Simplify right side
    13,222.29x = 132,361,152.76
  5. Step 5: Solve for x
    x = 132,361,152.76/13,222.29
  6. Step 6: Final answer
    x = 10,010.46

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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.