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Finding the Fourth Proportional to 9,999.88, 14,995.98 and 3,424.84

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Solution

The fourth proportional to 9,999.88, 14,995.98 and 3,424.84 is: 5,135.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,999.88 : 14,995.98 = 3,424.84 : x
  2. Step 2: Convert to fraction form
    9,999.88/14,995.98 = 3,424.84/x
  3. Step 3: Cross multiply
    9,999.88x = 14,995.98 × 3,424.84
  4. Step 4: Simplify right side
    9,999.88x = 51,358,832.14
  5. Step 5: Solve for x
    x = 51,358,832.14/9,999.88
  6. Step 6: Final answer
    x = 5,135.94

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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.