Home / 13,219.29-18,242.83-7,250.85

Finding the Fourth Proportional to 13,219.29, 18,242.83 and 7,250.85

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Solution

The fourth proportional to 13,219.29, 18,242.83 and 7,250.85 is: 10,006.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.29 : 18,242.83 = 7,250.85 : x
  2. Step 2: Convert to fraction form
    13,219.29/18,242.83 = 7,250.85/x
  3. Step 3: Cross multiply
    13,219.29x = 18,242.83 × 7,250.85
  4. Step 4: Simplify right side
    13,219.29x = 132,276,023.91
  5. Step 5: Solve for x
    x = 132,276,023.91/13,219.29
  6. Step 6: Final answer
    x = 10,006.29

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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.