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Finding the Fourth Proportional to 9,976.88, 14,968 and 8,888.72

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Solution

The fourth proportional to 9,976.88, 14,968 and 8,888.72 is: 13,335.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,976.88 : 14,968 = 8,888.72 : x
  2. Step 2: Convert to fraction form
    9,976.88/14,968 = 8,888.72/x
  3. Step 3: Cross multiply
    9,976.88x = 14,968 × 8,888.72
  4. Step 4: Simplify right side
    9,976.88x = 133,046,360.96
  5. Step 5: Solve for x
    x = 133,046,360.96/9,976.88
  6. Step 6: Final answer
    x = 13,335.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.