Home / 18,918.02-26,106.89-10,960.70

Finding the Fourth Proportional to 18,918.02, 26,106.89 and 10,960.70

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Solution

The fourth proportional to 18,918.02, 26,106.89 and 10,960.70 is: 15,125.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.02 : 26,106.89 = 10,960.70 : x
  2. Step 2: Convert to fraction form
    18,918.02/26,106.89 = 10,960.70/x
  3. Step 3: Cross multiply
    18,918.02x = 26,106.89 × 10,960.70
  4. Step 4: Simplify right side
    18,918.02x = 286,149,789.22
  5. Step 5: Solve for x
    x = 286,149,789.22/18,918.02
  6. Step 6: Final answer
    x = 15,125.78

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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.