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Finding the Fourth Proportional to 9,895.72, 13,650.03 and 7,768.06

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Solution

The fourth proportional to 9,895.72, 13,650.03 and 7,768.06 is: 10,715.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,895.72 : 13,650.03 = 7,768.06 : x
  2. Step 2: Convert to fraction form
    9,895.72/13,650.03 = 7,768.06/x
  3. Step 3: Cross multiply
    9,895.72x = 13,650.03 × 7,768.06
  4. Step 4: Simplify right side
    9,895.72x = 106,034,252.04
  5. Step 5: Solve for x
    x = 106,034,252.04/9,895.72
  6. Step 6: Final answer
    x = 10,715.16

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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.