Home / 10,991.99-15,169.68-6,210.27

Finding the Fourth Proportional to 10,991.99, 15,169.68 and 6,210.27

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Solution

The fourth proportional to 10,991.99, 15,169.68 and 6,210.27 is: 8,570.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,991.99 : 15,169.68 = 6,210.27 : x
  2. Step 2: Convert to fraction form
    10,991.99/15,169.68 = 6,210.27/x
  3. Step 3: Cross multiply
    10,991.99x = 15,169.68 × 6,210.27
  4. Step 4: Simplify right side
    10,991.99x = 94,207,808.61
  5. Step 5: Solve for x
    x = 94,207,808.61/10,991.99
  6. Step 6: Final answer
    x = 8,570.59

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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.