Home / 18,422.06-25,422.86-10,870.23

Finding the Fourth Proportional to 18,422.06, 25,422.86 and 10,870.23

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Solution

The fourth proportional to 18,422.06, 25,422.86 and 10,870.23 is: 15,001.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.06 : 25,422.86 = 10,870.23 : x
  2. Step 2: Convert to fraction form
    18,422.06/25,422.86 = 10,870.23/x
  3. Step 3: Cross multiply
    18,422.06x = 25,422.86 × 10,870.23
  4. Step 4: Simplify right side
    18,422.06x = 276,352,281.11
  5. Step 5: Solve for x
    x = 276,352,281.11/18,422.06
  6. Step 6: Final answer
    x = 15,001.16

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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.