Home / 13,350.67-18,422.31-7,381.52

Finding the Fourth Proportional to 13,350.67, 18,422.31 and 7,381.52

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Solution

The fourth proportional to 13,350.67, 18,422.31 and 7,381.52 is: 10,185.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,350.67 : 18,422.31 = 7,381.52 : x
  2. Step 2: Convert to fraction form
    13,350.67/18,422.31 = 7,381.52/x
  3. Step 3: Cross multiply
    13,350.67x = 18,422.31 × 7,381.52
  4. Step 4: Simplify right side
    13,350.67x = 135,984,649.71
  5. Step 5: Solve for x
    x = 135,984,649.71/13,350.67
  6. Step 6: Final answer
    x = 10,185.60

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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.