Home / 10,962.95-15,129.96-6,716.76

Finding the Fourth Proportional to 10,962.95, 15,129.96 and 6,716.76

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Solution

The fourth proportional to 10,962.95, 15,129.96 and 6,716.76 is: 9,269.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.95 : 15,129.96 = 6,716.76 : x
  2. Step 2: Convert to fraction form
    10,962.95/15,129.96 = 6,716.76/x
  3. Step 3: Cross multiply
    10,962.95x = 15,129.96 × 6,716.76
  4. Step 4: Simplify right side
    10,962.95x = 101,624,228.20
  5. Step 5: Solve for x
    x = 101,624,228.20/10,962.95
  6. Step 6: Final answer
    x = 9,269.79

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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.