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Finding the Fourth Proportional to 9,778.49, 13,494.20 and 5,302.13

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Solution

The fourth proportional to 9,778.49, 13,494.20 and 5,302.13 is: 7,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,778.49 : 13,494.20 = 5,302.13 : x
  2. Step 2: Convert to fraction form
    9,778.49/13,494.20 = 5,302.13/x
  3. Step 3: Cross multiply
    9,778.49x = 13,494.20 × 5,302.13
  4. Step 4: Simplify right side
    9,778.49x = 71,547,908.66
  5. Step 5: Solve for x
    x = 71,547,908.66/9,778.49
  6. Step 6: Final answer
    x = 7,316.87

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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.