Home / 18,422.16-25,422.69-10,038.66

Finding the Fourth Proportional to 18,422.16, 25,422.69 and 10,038.66

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Solution

The fourth proportional to 18,422.16, 25,422.69 and 10,038.66 is: 13,853.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,422.16 : 25,422.69 = 10,038.66 : x
  2. Step 2: Convert to fraction form
    18,422.16/25,422.69 = 10,038.66/x
  3. Step 3: Cross multiply
    18,422.16x = 25,422.69 × 10,038.66
  4. Step 4: Simplify right side
    18,422.16x = 255,209,741.20
  5. Step 5: Solve for x
    x = 255,209,741.20/18,422.16
  6. Step 6: Final answer
    x = 13,853.41

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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.