Home / 10,767.21-14,856.66-6,990.09

Finding the Fourth Proportional to 10,767.21, 14,856.66 and 6,990.09

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Solution

The fourth proportional to 10,767.21, 14,856.66 and 6,990.09 is: 9,644.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,767.21 : 14,856.66 = 6,990.09 : x
  2. Step 2: Convert to fraction form
    10,767.21/14,856.66 = 6,990.09/x
  3. Step 3: Cross multiply
    10,767.21x = 14,856.66 × 6,990.09
  4. Step 4: Simplify right side
    10,767.21x = 103,849,390.50
  5. Step 5: Solve for x
    x = 103,849,390.50/10,767.21
  6. Step 6: Final answer
    x = 9,644.97

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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.