Home / 19,157.04-28,727.60-7,315.11

Finding the Fourth Proportional to 19,157.04, 28,727.60 and 7,315.11

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Solution

The fourth proportional to 19,157.04, 28,727.60 and 7,315.11 is: 10,969.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,157.04 : 28,727.60 = 7,315.11 : x
  2. Step 2: Convert to fraction form
    19,157.04/28,727.60 = 7,315.11/x
  3. Step 3: Cross multiply
    19,157.04x = 28,727.60 × 7,315.11
  4. Step 4: Simplify right side
    19,157.04x = 210,145,517.46
  5. Step 5: Solve for x
    x = 210,145,517.46/19,157.04
  6. Step 6: Final answer
    x = 10,969.62

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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.