Home / 9,320.04-13,989.78-4,129.56

Finding the Fourth Proportional to 9,320.04, 13,989.78 and 4,129.56

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Solution

The fourth proportional to 9,320.04, 13,989.78 and 4,129.56 is: 6,198.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.04 : 13,989.78 = 4,129.56 : x
  2. Step 2: Convert to fraction form
    9,320.04/13,989.78 = 4,129.56/x
  3. Step 3: Cross multiply
    9,320.04x = 13,989.78 × 4,129.56
  4. Step 4: Simplify right side
    9,320.04x = 57,771,635.90
  5. Step 5: Solve for x
    x = 57,771,635.90/9,320.04
  6. Step 6: Final answer
    x = 6,198.65

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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.