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Finding the Fourth Proportional to 12,751.50, 17,598.72 and 7,162.50

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Solution

The fourth proportional to 12,751.50, 17,598.72 and 7,162.50 is: 9,885.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,751.50 : 17,598.72 = 7,162.50 : x
  2. Step 2: Convert to fraction form
    12,751.50/17,598.72 = 7,162.50/x
  3. Step 3: Cross multiply
    12,751.50x = 17,598.72 × 7,162.50
  4. Step 4: Simplify right side
    12,751.50x = 126,050,832.00
  5. Step 5: Solve for x
    x = 126,050,832.00/12,751.50
  6. Step 6: Final answer
    x = 9,885.18

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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.