Home / 17,399.49-26,077.35-12,478.74

Finding the Fourth Proportional to 17,399.49, 26,077.35 and 12,478.74

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Solution

The fourth proportional to 17,399.49, 26,077.35 and 12,478.74 is: 18,702.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,399.49 : 26,077.35 = 12,478.74 : x
  2. Step 2: Convert to fraction form
    17,399.49/26,077.35 = 12,478.74/x
  3. Step 3: Cross multiply
    17,399.49x = 26,077.35 × 12,478.74
  4. Step 4: Simplify right side
    17,399.49x = 325,412,470.54
  5. Step 5: Solve for x
    x = 325,412,470.54/17,399.49
  6. Step 6: Final answer
    x = 18,702.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.