Home / 18,935.82-26,131.02-10,977.84

Finding the Fourth Proportional to 18,935.82, 26,131.02 and 10,977.84

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Solution

The fourth proportional to 18,935.82, 26,131.02 and 10,977.84 is: 15,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,935.82 : 26,131.02 = 10,977.84 : x
  2. Step 2: Convert to fraction form
    18,935.82/26,131.02 = 10,977.84/x
  3. Step 3: Cross multiply
    18,935.82x = 26,131.02 × 10,977.84
  4. Step 4: Simplify right side
    18,935.82x = 286,862,156.60
  5. Step 5: Solve for x
    x = 286,862,156.60/18,935.82
  6. Step 6: Final answer
    x = 15,149.18

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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.