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Finding the Fourth Proportional to 8,457.24, 12,663.16 and 6,890.83

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Solution

The fourth proportional to 8,457.24, 12,663.16 and 6,890.83 is: 10,317.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,457.24 : 12,663.16 = 6,890.83 : x
  2. Step 2: Convert to fraction form
    8,457.24/12,663.16 = 6,890.83/x
  3. Step 3: Cross multiply
    8,457.24x = 12,663.16 × 6,890.83
  4. Step 4: Simplify right side
    8,457.24x = 87,259,682.82
  5. Step 5: Solve for x
    x = 87,259,682.82/8,457.24
  6. Step 6: Final answer
    x = 10,317.75

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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.