Home / 15,204.65-20,973.68-9,150.71

Finding the Fourth Proportional to 15,204.65, 20,973.68 and 9,150.71

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Solution

The fourth proportional to 15,204.65, 20,973.68 and 9,150.71 is: 12,622.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,204.65 : 20,973.68 = 9,150.71 : x
  2. Step 2: Convert to fraction form
    15,204.65/20,973.68 = 9,150.71/x
  3. Step 3: Cross multiply
    15,204.65x = 20,973.68 × 9,150.71
  4. Step 4: Simplify right side
    15,204.65x = 191,923,912.69
  5. Step 5: Solve for x
    x = 191,923,912.69/15,204.65
  6. Step 6: Final answer
    x = 12,622.72

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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.