Home / 18,139.86-25,032.96-10,182.87

Finding the Fourth Proportional to 18,139.86, 25,032.96 and 10,182.87

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Solution

The fourth proportional to 18,139.86, 25,032.96 and 10,182.87 is: 14,052.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.86 : 25,032.96 = 10,182.87 : x
  2. Step 2: Convert to fraction form
    18,139.86/25,032.96 = 10,182.87/x
  3. Step 3: Cross multiply
    18,139.86x = 25,032.96 × 10,182.87
  4. Step 4: Simplify right side
    18,139.86x = 254,907,377.40
  5. Step 5: Solve for x
    x = 254,907,377.40/18,139.86
  6. Step 6: Final answer
    x = 14,052.33

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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.