Home / 18,615.34-25,689.31-10,117.46

Finding the Fourth Proportional to 18,615.34, 25,689.31 and 10,117.46

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Solution

The fourth proportional to 18,615.34, 25,689.31 and 10,117.46 is: 13,962.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.34 : 25,689.31 = 10,117.46 : x
  2. Step 2: Convert to fraction form
    18,615.34/25,689.31 = 10,117.46/x
  3. Step 3: Cross multiply
    18,615.34x = 25,689.31 × 10,117.46
  4. Step 4: Simplify right side
    18,615.34x = 259,910,605.28
  5. Step 5: Solve for x
    x = 259,910,605.28/18,615.34
  6. Step 6: Final answer
    x = 13,962.18

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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.