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Finding the Fourth Proportional to 26,510.86, 39,765.24 and 8,980.68

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Solution

The fourth proportional to 26,510.86, 39,765.24 and 8,980.68 is: 13,470.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,510.86 : 39,765.24 = 8,980.68 : x
  2. Step 2: Convert to fraction form
    26,510.86/39,765.24 = 8,980.68/x
  3. Step 3: Cross multiply
    26,510.86x = 39,765.24 × 8,980.68
  4. Step 4: Simplify right side
    26,510.86x = 357,118,895.56
  5. Step 5: Solve for x
    x = 357,118,895.56/26,510.86
  6. Step 6: Final answer
    x = 13,470.66

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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.