Home / 18,139.10-25,032.33-10,181.90

Finding the Fourth Proportional to 18,139.10, 25,032.33 and 10,181.90

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Solution

The fourth proportional to 18,139.10, 25,032.33 and 10,181.90 is: 14,051.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.10 : 25,032.33 = 10,181.90 : x
  2. Step 2: Convert to fraction form
    18,139.10/25,032.33 = 10,181.90/x
  3. Step 3: Cross multiply
    18,139.10x = 25,032.33 × 10,181.90
  4. Step 4: Simplify right side
    18,139.10x = 254,876,680.83
  5. Step 5: Solve for x
    x = 254,876,680.83/18,139.10
  6. Step 6: Final answer
    x = 14,051.23

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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.