Home / 18,139.60-25,032.29-10,072.83

Finding the Fourth Proportional to 18,139.60, 25,032.29 and 10,072.83

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Solution

The fourth proportional to 18,139.60, 25,032.29 and 10,072.83 is: 13,900.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.60 : 25,032.29 = 10,072.83 : x
  2. Step 2: Convert to fraction form
    18,139.60/25,032.29 = 10,072.83/x
  3. Step 3: Cross multiply
    18,139.60x = 25,032.29 × 10,072.83
  4. Step 4: Simplify right side
    18,139.60x = 252,146,045.19
  5. Step 5: Solve for x
    x = 252,146,045.19/18,139.60
  6. Step 6: Final answer
    x = 13,900.31

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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.