Home / 18,933.66-26,133.17-10,980.68

Finding the Fourth Proportional to 18,933.66, 26,133.17 and 10,980.68

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Solution

The fourth proportional to 18,933.66, 26,133.17 and 10,980.68 is: 15,156.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,933.66 : 26,133.17 = 10,980.68 : x
  2. Step 2: Convert to fraction form
    18,933.66/26,133.17 = 10,980.68/x
  3. Step 3: Cross multiply
    18,933.66x = 26,133.17 × 10,980.68
  4. Step 4: Simplify right side
    18,933.66x = 286,959,791.59
  5. Step 5: Solve for x
    x = 286,959,791.59/18,933.66
  6. Step 6: Final answer
    x = 15,156.07

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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.