Home / 10,767.24-14,861.72-6,990.20

Finding the Fourth Proportional to 10,767.24, 14,861.72 and 6,990.20

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Solution

The fourth proportional to 10,767.24, 14,861.72 and 6,990.20 is: 9,648.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,767.24 : 14,861.72 = 6,990.20 : x
  2. Step 2: Convert to fraction form
    10,767.24/14,861.72 = 6,990.20/x
  3. Step 3: Cross multiply
    10,767.24x = 14,861.72 × 6,990.20
  4. Step 4: Simplify right side
    10,767.24x = 103,886,285.88
  5. Step 5: Solve for x
    x = 103,886,285.88/10,767.24
  6. Step 6: Final answer
    x = 9,648.37

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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.