Home / 14,615.06-20,168.73-7,900.65

Finding the Fourth Proportional to 14,615.06, 20,168.73 and 7,900.65

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Solution

The fourth proportional to 14,615.06, 20,168.73 and 7,900.65 is: 10,902.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.06 : 20,168.73 = 7,900.65 : x
  2. Step 2: Convert to fraction form
    14,615.06/20,168.73 = 7,900.65/x
  3. Step 3: Cross multiply
    14,615.06x = 20,168.73 × 7,900.65
  4. Step 4: Simplify right side
    14,615.06x = 159,346,076.67
  5. Step 5: Solve for x
    x = 159,346,076.67/14,615.06
  6. Step 6: Final answer
    x = 10,902.87

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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.