Home / 18,615.24-25,689.23-10,117.36

Finding the Fourth Proportional to 18,615.24, 25,689.23 and 10,117.36

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Solution

The fourth proportional to 18,615.24, 25,689.23 and 10,117.36 is: 13,962.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.24 : 25,689.23 = 10,117.36 : x
  2. Step 2: Convert to fraction form
    18,615.24/25,689.23 = 10,117.36/x
  3. Step 3: Cross multiply
    18,615.24x = 25,689.23 × 10,117.36
  4. Step 4: Simplify right side
    18,615.24x = 259,907,149.10
  5. Step 5: Solve for x
    x = 259,907,149.10/18,615.24
  6. Step 6: Final answer
    x = 13,962.06

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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.