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Finding the Fourth Proportional to 8,355.98, 11,527.16 and 7,029.20

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Solution

The fourth proportional to 8,355.98, 11,527.16 and 7,029.20 is: 9,696.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.98 : 11,527.16 = 7,029.20 : x
  2. Step 2: Convert to fraction form
    8,355.98/11,527.16 = 7,029.20/x
  3. Step 3: Cross multiply
    8,355.98x = 11,527.16 × 7,029.20
  4. Step 4: Simplify right side
    8,355.98x = 81,026,713.07
  5. Step 5: Solve for x
    x = 81,026,713.07/8,355.98
  6. Step 6: Final answer
    x = 9,696.85

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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.