Home / 26,662.80-39,999.60-9,134.40

Finding the Fourth Proportional to 26,662.80, 39,999.60 and 9,134.40

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Solution

The fourth proportional to 26,662.80, 39,999.60 and 9,134.40 is: 13,703.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,662.80 : 39,999.60 = 9,134.40 : x
  2. Step 2: Convert to fraction form
    26,662.80/39,999.60 = 9,134.40/x
  3. Step 3: Cross multiply
    26,662.80x = 39,999.60 × 9,134.40
  4. Step 4: Simplify right side
    26,662.80x = 365,372,346.24
  5. Step 5: Solve for x
    x = 365,372,346.24/26,662.80
  6. Step 6: Final answer
    x = 13,703.45

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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.