Home / 18,139.82-25,035.40-10,182.48

Finding the Fourth Proportional to 18,139.82, 25,035.40 and 10,182.48

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Solution

The fourth proportional to 18,139.82, 25,035.40 and 10,182.48 is: 14,053.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.82 : 25,035.40 = 10,182.48 : x
  2. Step 2: Convert to fraction form
    18,139.82/25,035.40 = 10,182.48/x
  3. Step 3: Cross multiply
    18,139.82x = 25,035.40 × 10,182.48
  4. Step 4: Simplify right side
    18,139.82x = 254,922,459.79
  5. Step 5: Solve for x
    x = 254,922,459.79/18,139.82
  6. Step 6: Final answer
    x = 14,053.20

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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.