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Finding the Fourth Proportional to 13,547.24, 18,696.42 and 7,959.08

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Solution

The fourth proportional to 13,547.24, 18,696.42 and 7,959.08 is: 10,984.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,547.24 : 18,696.42 = 7,959.08 : x
  2. Step 2: Convert to fraction form
    13,547.24/18,696.42 = 7,959.08/x
  3. Step 3: Cross multiply
    13,547.24x = 18,696.42 × 7,959.08
  4. Step 4: Simplify right side
    13,547.24x = 148,806,302.49
  5. Step 5: Solve for x
    x = 148,806,302.49/13,547.24
  6. Step 6: Final answer
    x = 10,984.25

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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.