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Finding the Fourth Proportional to 9,900.99, 14,852.45 and 2,881.06

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Solution

The fourth proportional to 9,900.99, 14,852.45 and 2,881.06 is: 4,321.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,900.99 : 14,852.45 = 2,881.06 : x
  2. Step 2: Convert to fraction form
    9,900.99/14,852.45 = 2,881.06/x
  3. Step 3: Cross multiply
    9,900.99x = 14,852.45 × 2,881.06
  4. Step 4: Simplify right side
    9,900.99x = 42,790,799.60
  5. Step 5: Solve for x
    x = 42,790,799.60/9,900.99
  6. Step 6: Final answer
    x = 4,321.87

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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.