Home / 18,963.05-26,140.24-13,655.93

Finding the Fourth Proportional to 18,963.05, 26,140.24 and 13,655.93

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Solution

The fourth proportional to 18,963.05, 26,140.24 and 13,655.93 is: 18,824.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,963.05 : 26,140.24 = 13,655.93 : x
  2. Step 2: Convert to fraction form
    18,963.05/26,140.24 = 13,655.93/x
  3. Step 3: Cross multiply
    18,963.05x = 26,140.24 × 13,655.93
  4. Step 4: Simplify right side
    18,963.05x = 356,969,318.83
  5. Step 5: Solve for x
    x = 356,969,318.83/18,963.05
  6. Step 6: Final answer
    x = 18,824.47

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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.