Home / 18,139.10-25,030.23-10,179.50

Finding the Fourth Proportional to 18,139.10, 25,030.23 and 10,179.50

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Solution

The fourth proportional to 18,139.10, 25,030.23 and 10,179.50 is: 14,046.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,139.10 : 25,030.23 = 10,179.50 : x
  2. Step 2: Convert to fraction form
    18,139.10/25,030.23 = 10,179.50/x
  3. Step 3: Cross multiply
    18,139.10x = 25,030.23 × 10,179.50
  4. Step 4: Simplify right side
    18,139.10x = 254,795,226.29
  5. Step 5: Solve for x
    x = 254,795,226.29/18,139.10
  6. Step 6: Final answer
    x = 14,046.74

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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.