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Finding the Fourth Proportional to 9,894.78, 14,754.87 and 9,805.88

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Solution

The fourth proportional to 9,894.78, 14,754.87 and 9,805.88 is: 14,622.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,894.78 : 14,754.87 = 9,805.88 : x
  2. Step 2: Convert to fraction form
    9,894.78/14,754.87 = 9,805.88/x
  3. Step 3: Cross multiply
    9,894.78x = 14,754.87 × 9,805.88
  4. Step 4: Simplify right side
    9,894.78x = 144,684,521.52
  5. Step 5: Solve for x
    x = 144,684,521.52/9,894.78
  6. Step 6: Final answer
    x = 14,622.31

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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.