Home / 6,991.28-10,486.93-5,756.10

Finding the Fourth Proportional to 6,991.28, 10,486.93 and 5,756.10

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Solution

The fourth proportional to 6,991.28, 10,486.93 and 5,756.10 is: 8,634.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,991.28 : 10,486.93 = 5,756.10 : x
  2. Step 2: Convert to fraction form
    6,991.28/10,486.93 = 5,756.10/x
  3. Step 3: Cross multiply
    6,991.28x = 10,486.93 × 5,756.10
  4. Step 4: Simplify right side
    6,991.28x = 60,363,758.66
  5. Step 5: Solve for x
    x = 60,363,758.66/6,991.28
  6. Step 6: Final answer
    x = 8,634.15

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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.