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Finding the Fourth Proportional to 26,668.76, 40,005.42 and 6,947.32

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Solution

The fourth proportional to 26,668.76, 40,005.42 and 6,947.32 is: 10,421.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,668.76 : 40,005.42 = 6,947.32 : x
  2. Step 2: Convert to fraction form
    26,668.76/40,005.42 = 6,947.32/x
  3. Step 3: Cross multiply
    26,668.76x = 40,005.42 × 6,947.32
  4. Step 4: Simplify right side
    26,668.76x = 277,930,454.47
  5. Step 5: Solve for x
    x = 277,930,454.47/26,668.76
  6. Step 6: Final answer
    x = 10,421.57

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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.