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Finding the Fourth Proportional to 9,856, 13,602.90 and 5,663.44

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Solution

The fourth proportional to 9,856, 13,602.90 and 5,663.44 is: 7,816.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,856 : 13,602.90 = 5,663.44 : x
  2. Step 2: Convert to fraction form
    9,856/13,602.90 = 5,663.44/x
  3. Step 3: Cross multiply
    9,856x = 13,602.90 × 5,663.44
  4. Step 4: Simplify right side
    9,856x = 77,039,207.98
  5. Step 5: Solve for x
    x = 77,039,207.98/9,856
  6. Step 6: Final answer
    x = 7,816.48

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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.