Home / 13,206.96-18,225.81-7,902

Finding the Fourth Proportional to 13,206.96, 18,225.81 and 7,902

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Solution

The fourth proportional to 13,206.96, 18,225.81 and 7,902 is: 10,904.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206.96 : 18,225.81 = 7,902 : x
  2. Step 2: Convert to fraction form
    13,206.96/18,225.81 = 7,902/x
  3. Step 3: Cross multiply
    13,206.96x = 18,225.81 × 7,902
  4. Step 4: Simplify right side
    13,206.96x = 144,020,350.62
  5. Step 5: Solve for x
    x = 144,020,350.62/13,206.96
  6. Step 6: Final answer
    x = 10,904.88

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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.