Home / 15,707.36-21,677.18-9,743

Finding the Fourth Proportional to 15,707.36, 21,677.18 and 9,743

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Solution

The fourth proportional to 15,707.36, 21,677.18 and 9,743 is: 13,445.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,707.36 : 21,677.18 = 9,743 : x
  2. Step 2: Convert to fraction form
    15,707.36/21,677.18 = 9,743/x
  3. Step 3: Cross multiply
    15,707.36x = 21,677.18 × 9,743
  4. Step 4: Simplify right side
    15,707.36x = 211,200,764.74
  5. Step 5: Solve for x
    x = 211,200,764.74/15,707.36
  6. Step 6: Final answer
    x = 13,445.97

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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.