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Finding the Fourth Proportional to 9,988.99, 14,983.52 and 7,799.56

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Solution

The fourth proportional to 9,988.99, 14,983.52 and 7,799.56 is: 11,699.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.99 : 14,983.52 = 7,799.56 : x
  2. Step 2: Convert to fraction form
    9,988.99/14,983.52 = 7,799.56/x
  3. Step 3: Cross multiply
    9,988.99x = 14,983.52 × 7,799.56
  4. Step 4: Simplify right side
    9,988.99x = 116,864,786.79
  5. Step 5: Solve for x
    x = 116,864,786.79/9,988.99
  6. Step 6: Final answer
    x = 11,699.36

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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.