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Finding the Fourth Proportional to 26,016.40, 39,010.20 and 8,477.20

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Solution

The fourth proportional to 26,016.40, 39,010.20 and 8,477.20 is: 12,711.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,016.40 : 39,010.20 = 8,477.20 : x
  2. Step 2: Convert to fraction form
    26,016.40/39,010.20 = 8,477.20/x
  3. Step 3: Cross multiply
    26,016.40x = 39,010.20 × 8,477.20
  4. Step 4: Simplify right side
    26,016.40x = 330,697,267.44
  5. Step 5: Solve for x
    x = 330,697,267.44/26,016.40
  6. Step 6: Final answer
    x = 12,711.11

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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.