Home / 26,291.12-39,436.72-8,762.32

Finding the Fourth Proportional to 26,291.12, 39,436.72 and 8,762.32

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Solution

The fourth proportional to 26,291.12, 39,436.72 and 8,762.32 is: 13,143.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,291.12 : 39,436.72 = 8,762.32 : x
  2. Step 2: Convert to fraction form
    26,291.12/39,436.72 = 8,762.32/x
  3. Step 3: Cross multiply
    26,291.12x = 39,436.72 × 8,762.32
  4. Step 4: Simplify right side
    26,291.12x = 345,557,160.39
  5. Step 5: Solve for x
    x = 345,557,160.39/26,291.12
  6. Step 6: Final answer
    x = 13,143.49

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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.