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Finding the Fourth Proportional to 12,547.98, 17,319.33 and 7,242.03

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Solution

The fourth proportional to 12,547.98, 17,319.33 and 7,242.03 is: 9,995.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.98 : 17,319.33 = 7,242.03 : x
  2. Step 2: Convert to fraction form
    12,547.98/17,319.33 = 7,242.03/x
  3. Step 3: Cross multiply
    12,547.98x = 17,319.33 × 7,242.03
  4. Step 4: Simplify right side
    12,547.98x = 125,427,107.44
  5. Step 5: Solve for x
    x = 125,427,107.44/12,547.98
  6. Step 6: Final answer
    x = 9,995.80

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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.