Home / 18,935.50-26,131.08-10,982.44

Finding the Fourth Proportional to 18,935.50, 26,131.08 and 10,982.44

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Solution

The fourth proportional to 18,935.50, 26,131.08 and 10,982.44 is: 15,155.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.50 : 26,131.08 = 10,982.44 : x
  2. Step 2: Convert to fraction form
    18,935.50/26,131.08 = 10,982.44/x
  3. Step 3: Cross multiply
    18,935.50x = 26,131.08 × 10,982.44
  4. Step 4: Simplify right side
    18,935.50x = 286,983,018.24
  5. Step 5: Solve for x
    x = 286,983,018.24/18,935.50
  6. Step 6: Final answer
    x = 15,155.82

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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.