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Finding the Fourth Proportional to 10,911, 15,057.21 and 6,196.02

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Solution

The fourth proportional to 10,911, 15,057.21 and 6,196.02 is: 8,550.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,911 : 15,057.21 = 6,196.02 : x
  2. Step 2: Convert to fraction form
    10,911/15,057.21 = 6,196.02/x
  3. Step 3: Cross multiply
    10,911x = 15,057.21 × 6,196.02
  4. Step 4: Simplify right side
    10,911x = 93,294,774.30
  5. Step 5: Solve for x
    x = 93,294,774.30/10,911
  6. Step 6: Final answer
    x = 8,550.52

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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.