Home / 13,242.49-18,272.99-7,576.74

Finding the Fourth Proportional to 13,242.49, 18,272.99 and 7,576.74

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Solution

The fourth proportional to 13,242.49, 18,272.99 and 7,576.74 is: 10,454.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,242.49 : 18,272.99 = 7,576.74 : x
  2. Step 2: Convert to fraction form
    13,242.49/18,272.99 = 7,576.74/x
  3. Step 3: Cross multiply
    13,242.49x = 18,272.99 × 7,576.74
  4. Step 4: Simplify right side
    13,242.49x = 138,449,713.19
  5. Step 5: Solve for x
    x = 138,449,713.19/13,242.49
  6. Step 6: Final answer
    x = 10,454.96

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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.