Home / 13,249.68-18,285.04-7,281.29

Finding the Fourth Proportional to 13,249.68, 18,285.04 and 7,281.29

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Solution

The fourth proportional to 13,249.68, 18,285.04 and 7,281.29 is: 10,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,249.68 : 18,285.04 = 7,281.29 : x
  2. Step 2: Convert to fraction form
    13,249.68/18,285.04 = 7,281.29/x
  3. Step 3: Cross multiply
    13,249.68x = 18,285.04 × 7,281.29
  4. Step 4: Simplify right side
    13,249.68x = 133,138,733.72
  5. Step 5: Solve for x
    x = 133,138,733.72/13,249.68
  6. Step 6: Final answer
    x = 10,048.45

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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.