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Finding the Fourth Proportional to 12,470.08, 18,706.56 and 5,803.12

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Solution

The fourth proportional to 12,470.08, 18,706.56 and 5,803.12 is: 8,705.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,470.08 : 18,706.56 = 5,803.12 : x
  2. Step 2: Convert to fraction form
    12,470.08/18,706.56 = 5,803.12/x
  3. Step 3: Cross multiply
    12,470.08x = 18,706.56 × 5,803.12
  4. Step 4: Simplify right side
    12,470.08x = 108,556,412.47
  5. Step 5: Solve for x
    x = 108,556,412.47/12,470.08
  6. Step 6: Final answer
    x = 8,705.35

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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.