Home / 8,491.23-11,719.89-5,658.66

Finding the Fourth Proportional to 8,491.23, 11,719.89 and 5,658.66

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Solution

The fourth proportional to 8,491.23, 11,719.89 and 5,658.66 is: 7,810.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,491.23 : 11,719.89 = 5,658.66 : x
  2. Step 2: Convert to fraction form
    8,491.23/11,719.89 = 5,658.66/x
  3. Step 3: Cross multiply
    8,491.23x = 11,719.89 × 5,658.66
  4. Step 4: Simplify right side
    8,491.23x = 66,318,872.75
  5. Step 5: Solve for x
    x = 66,318,872.75/8,491.23
  6. Step 6: Final answer
    x = 7,810.28

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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.