Home / 10,947.95-15,103.37-6,699.21

Finding the Fourth Proportional to 10,947.95, 15,103.37 and 6,699.21

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Solution

The fourth proportional to 10,947.95, 15,103.37 and 6,699.21 is: 9,241.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,947.95 : 15,103.37 = 6,699.21 : x
  2. Step 2: Convert to fraction form
    10,947.95/15,103.37 = 6,699.21/x
  3. Step 3: Cross multiply
    10,947.95x = 15,103.37 × 6,699.21
  4. Step 4: Simplify right side
    10,947.95x = 101,180,613.84
  5. Step 5: Solve for x
    x = 101,180,613.84/10,947.95
  6. Step 6: Final answer
    x = 9,241.97

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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.