Home / 18,966.93-26,169.89-11,007.78

Finding the Fourth Proportional to 18,966.93, 26,169.89 and 11,007.78

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Solution

The fourth proportional to 18,966.93, 26,169.89 and 11,007.78 is: 15,188.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,966.93 : 26,169.89 = 11,007.78 : x
  2. Step 2: Convert to fraction form
    18,966.93/26,169.89 = 11,007.78/x
  3. Step 3: Cross multiply
    18,966.93x = 26,169.89 × 11,007.78
  4. Step 4: Simplify right side
    18,966.93x = 288,072,336.71
  5. Step 5: Solve for x
    x = 288,072,336.71/18,966.93
  6. Step 6: Final answer
    x = 15,188.14

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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.