Home / 12,320.44-17,002.41-7,015.75

Finding the Fourth Proportional to 12,320.44, 17,002.41 and 7,015.75

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Solution

The fourth proportional to 12,320.44, 17,002.41 and 7,015.75 is: 9,681.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.44 : 17,002.41 = 7,015.75 : x
  2. Step 2: Convert to fraction form
    12,320.44/17,002.41 = 7,015.75/x
  3. Step 3: Cross multiply
    12,320.44x = 17,002.41 × 7,015.75
  4. Step 4: Simplify right side
    12,320.44x = 119,284,657.96
  5. Step 5: Solve for x
    x = 119,284,657.96/12,320.44
  6. Step 6: Final answer
    x = 9,681.85

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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.