Home / 14,615.03-20,168.89-7,900.79

Finding the Fourth Proportional to 14,615.03, 20,168.89 and 7,900.79

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Solution

The fourth proportional to 14,615.03, 20,168.89 and 7,900.79 is: 10,903.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,615.03 : 20,168.89 = 7,900.79 : x
  2. Step 2: Convert to fraction form
    14,615.03/20,168.89 = 7,900.79/x
  3. Step 3: Cross multiply
    14,615.03x = 20,168.89 × 7,900.79
  4. Step 4: Simplify right side
    14,615.03x = 159,350,164.42
  5. Step 5: Solve for x
    x = 159,350,164.42/14,615.03
  6. Step 6: Final answer
    x = 10,903.17

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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.