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Finding the Fourth Proportional to 26,979.61, 40,467.96 and 8,259.67

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Solution

The fourth proportional to 26,979.61, 40,467.96 and 8,259.67 is: 12,389.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,979.61 : 40,467.96 = 8,259.67 : x
  2. Step 2: Convert to fraction form
    26,979.61/40,467.96 = 8,259.67/x
  3. Step 3: Cross multiply
    26,979.61x = 40,467.96 × 8,259.67
  4. Step 4: Simplify right side
    26,979.61x = 334,251,995.17
  5. Step 5: Solve for x
    x = 334,251,995.17/26,979.61
  6. Step 6: Final answer
    x = 12,389.06

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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.