Home / 18,938.54-26,134-10,440.22

Finding the Fourth Proportional to 18,938.54, 26,134 and 10,440.22

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Solution

The fourth proportional to 18,938.54, 26,134 and 10,440.22 is: 14,406.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,938.54 : 26,134 = 10,440.22 : x
  2. Step 2: Convert to fraction form
    18,938.54/26,134 = 10,440.22/x
  3. Step 3: Cross multiply
    18,938.54x = 26,134 × 10,440.22
  4. Step 4: Simplify right side
    18,938.54x = 272,844,709.48
  5. Step 5: Solve for x
    x = 272,844,709.48/18,938.54
  6. Step 6: Final answer
    x = 14,406.85

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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.