Home / 18,944.58-26,138.25-10,985.22

Finding the Fourth Proportional to 18,944.58, 26,138.25 and 10,985.22

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Solution

The fourth proportional to 18,944.58, 26,138.25 and 10,985.22 is: 15,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,944.58 : 26,138.25 = 10,985.22 : x
  2. Step 2: Convert to fraction form
    18,944.58/26,138.25 = 10,985.22/x
  3. Step 3: Cross multiply
    18,944.58x = 26,138.25 × 10,985.22
  4. Step 4: Simplify right side
    18,944.58x = 287,134,426.67
  5. Step 5: Solve for x
    x = 287,134,426.67/18,944.58
  6. Step 6: Final answer
    x = 15,156.55

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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.