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Finding the Fourth Proportional to 15,756.12, 23,615.04 and 7,426.38

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Solution

The fourth proportional to 15,756.12, 23,615.04 and 7,426.38 is: 11,130.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,756.12 : 23,615.04 = 7,426.38 : x
  2. Step 2: Convert to fraction form
    15,756.12/23,615.04 = 7,426.38/x
  3. Step 3: Cross multiply
    15,756.12x = 23,615.04 × 7,426.38
  4. Step 4: Simplify right side
    15,756.12x = 175,374,377.16
  5. Step 5: Solve for x
    x = 175,374,377.16/15,756.12
  6. Step 6: Final answer
    x = 11,130.56

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.