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Finding the Fourth Proportional to 9,972.74, 13,768.99 and 7,699.95

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Solution

The fourth proportional to 9,972.74, 13,768.99 and 7,699.95 is: 10,631.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,972.74 : 13,768.99 = 7,699.95 : x
  2. Step 2: Convert to fraction form
    9,972.74/13,768.99 = 7,699.95/x
  3. Step 3: Cross multiply
    9,972.74x = 13,768.99 × 7,699.95
  4. Step 4: Simplify right side
    9,972.74x = 106,020,515.30
  5. Step 5: Solve for x
    x = 106,020,515.30/9,972.74
  6. Step 6: Final answer
    x = 10,631.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.