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Finding the Fourth Proportional to 9,909.05, 14,866.05 and 6,993.05

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Solution

The fourth proportional to 9,909.05, 14,866.05 and 6,993.05 is: 10,491.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,909.05 : 14,866.05 = 6,993.05 : x
  2. Step 2: Convert to fraction form
    9,909.05/14,866.05 = 6,993.05/x
  3. Step 3: Cross multiply
    9,909.05x = 14,866.05 × 6,993.05
  4. Step 4: Simplify right side
    9,909.05x = 103,959,094.34
  5. Step 5: Solve for x
    x = 103,959,094.34/9,909.05
  6. Step 6: Final answer
    x = 10,491.33

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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.