Home / 12,320.92-17,003.55-7,015.62

Finding the Fourth Proportional to 12,320.92, 17,003.55 and 7,015.62

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Solution

The fourth proportional to 12,320.92, 17,003.55 and 7,015.62 is: 9,681.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.92 : 17,003.55 = 7,015.62 : x
  2. Step 2: Convert to fraction form
    12,320.92/17,003.55 = 7,015.62/x
  3. Step 3: Cross multiply
    12,320.92x = 17,003.55 × 7,015.62
  4. Step 4: Simplify right side
    12,320.92x = 119,290,445.45
  5. Step 5: Solve for x
    x = 119,290,445.45/12,320.92
  6. Step 6: Final answer
    x = 9,681.94

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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.