Home / 11,531.28-17,317.80-10,605.18

Finding the Fourth Proportional to 11,531.28, 17,317.80 and 10,605.18

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Solution

The fourth proportional to 11,531.28, 17,317.80 and 10,605.18 is: 15,926.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.28 : 17,317.80 = 10,605.18 : x
  2. Step 2: Convert to fraction form
    11,531.28/17,317.80 = 10,605.18/x
  3. Step 3: Cross multiply
    11,531.28x = 17,317.80 × 10,605.18
  4. Step 4: Simplify right side
    11,531.28x = 183,658,386.20
  5. Step 5: Solve for x
    x = 183,658,386.20/11,531.28
  6. Step 6: Final answer
    x = 15,926.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.