Home / 19,287.70-26,616.88-10,789.79

Finding the Fourth Proportional to 19,287.70, 26,616.88 and 10,789.79

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Solution

The fourth proportional to 19,287.70, 26,616.88 and 10,789.79 is: 14,889.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.70 : 26,616.88 = 10,789.79 : x
  2. Step 2: Convert to fraction form
    19,287.70/26,616.88 = 10,789.79/x
  3. Step 3: Cross multiply
    19,287.70x = 26,616.88 × 10,789.79
  4. Step 4: Simplify right side
    19,287.70x = 287,190,426.06
  5. Step 5: Solve for x
    x = 287,190,426.06/19,287.70
  6. Step 6: Final answer
    x = 14,889.82

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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.