Home / 26,212.40-39,316.80-8,442.80

Finding the Fourth Proportional to 26,212.40, 39,316.80 and 8,442.80

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Solution

The fourth proportional to 26,212.40, 39,316.80 and 8,442.80 is: 12,663.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,212.40 : 39,316.80 = 8,442.80 : x
  2. Step 2: Convert to fraction form
    26,212.40/39,316.80 = 8,442.80/x
  3. Step 3: Cross multiply
    26,212.40x = 39,316.80 × 8,442.80
  4. Step 4: Simplify right side
    26,212.40x = 331,943,879.04
  5. Step 5: Solve for x
    x = 331,943,879.04/26,212.40
  6. Step 6: Final answer
    x = 12,663.62

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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.