Home / 19,188.39-26,478.17-10,689.65

Finding the Fourth Proportional to 19,188.39, 26,478.17 and 10,689.65

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Solution

The fourth proportional to 19,188.39, 26,478.17 and 10,689.65 is: 14,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,188.39 : 26,478.17 = 10,689.65 : x
  2. Step 2: Convert to fraction form
    19,188.39/26,478.17 = 10,689.65/x
  3. Step 3: Cross multiply
    19,188.39x = 26,478.17 × 10,689.65
  4. Step 4: Simplify right side
    19,188.39x = 283,042,383.61
  5. Step 5: Solve for x
    x = 283,042,383.61/19,188.39
  6. Step 6: Final answer
    x = 14,750.71

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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.