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Finding the Fourth Proportional to 12,368.68, 18,547.26 and 7,176.04

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Solution

The fourth proportional to 12,368.68, 18,547.26 and 7,176.04 is: 10,760.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,368.68 : 18,547.26 = 7,176.04 : x
  2. Step 2: Convert to fraction form
    12,368.68/18,547.26 = 7,176.04/x
  3. Step 3: Cross multiply
    12,368.68x = 18,547.26 × 7,176.04
  4. Step 4: Simplify right side
    12,368.68x = 133,095,879.65
  5. Step 5: Solve for x
    x = 133,095,879.65/12,368.68
  6. Step 6: Final answer
    x = 10,760.72

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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.