Home / 18,948.80-26,149.28-10,995.68

Finding the Fourth Proportional to 18,948.80, 26,149.28 and 10,995.68

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Solution

The fourth proportional to 18,948.80, 26,149.28 and 10,995.68 is: 15,174.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.80 : 26,149.28 = 10,995.68 : x
  2. Step 2: Convert to fraction form
    18,948.80/26,149.28 = 10,995.68/x
  3. Step 3: Cross multiply
    18,948.80x = 26,149.28 × 10,995.68
  4. Step 4: Simplify right side
    18,948.80x = 287,529,115.11
  5. Step 5: Solve for x
    x = 287,529,115.11/18,948.80
  6. Step 6: Final answer
    x = 15,174.00

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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.