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Finding the Fourth Proportional to 15,152.66, 20,890.29 and 10,609.23

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Solution

The fourth proportional to 15,152.66, 20,890.29 and 10,609.23 is: 14,626.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,152.66 : 20,890.29 = 10,609.23 : x
  2. Step 2: Convert to fraction form
    15,152.66/20,890.29 = 10,609.23/x
  3. Step 3: Cross multiply
    15,152.66x = 20,890.29 × 10,609.23
  4. Step 4: Simplify right side
    15,152.66x = 221,629,812.42
  5. Step 5: Solve for x
    x = 221,629,812.42/15,152.66
  6. Step 6: Final answer
    x = 14,626.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.