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Finding the Fourth Proportional to 11,191.08, 15,444.90 and 7,000.68

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Solution

The fourth proportional to 11,191.08, 15,444.90 and 7,000.68 is: 9,661.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,191.08 : 15,444.90 = 7,000.68 : x
  2. Step 2: Convert to fraction form
    11,191.08/15,444.90 = 7,000.68/x
  3. Step 3: Cross multiply
    11,191.08x = 15,444.90 × 7,000.68
  4. Step 4: Simplify right side
    11,191.08x = 108,124,802.53
  5. Step 5: Solve for x
    x = 108,124,802.53/11,191.08
  6. Step 6: Final answer
    x = 9,661.70

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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.