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Finding the Fourth Proportional to 9,113.61, 13,620.48 and 6,653.61

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Solution

The fourth proportional to 9,113.61, 13,620.48 and 6,653.61 is: 9,943.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,113.61 : 13,620.48 = 6,653.61 : x
  2. Step 2: Convert to fraction form
    9,113.61/13,620.48 = 6,653.61/x
  3. Step 3: Cross multiply
    9,113.61x = 13,620.48 × 6,653.61
  4. Step 4: Simplify right side
    9,113.61x = 90,625,336.98
  5. Step 5: Solve for x
    x = 90,625,336.98/9,113.61
  6. Step 6: Final answer
    x = 9,943.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.