Home / 9,439.80-13,027.65-5,663.12

Finding the Fourth Proportional to 9,439.80, 13,027.65 and 5,663.12

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Solution

The fourth proportional to 9,439.80, 13,027.65 and 5,663.12 is: 7,815.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,439.80 : 13,027.65 = 5,663.12 : x
  2. Step 2: Convert to fraction form
    9,439.80/13,027.65 = 5,663.12/x
  3. Step 3: Cross multiply
    9,439.80x = 13,027.65 × 5,663.12
  4. Step 4: Simplify right side
    9,439.80x = 73,777,145.27
  5. Step 5: Solve for x
    x = 73,777,145.27/9,439.80
  6. Step 6: Final answer
    x = 7,815.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.