Home / 10,861.31-14,986.16-6,612.26

Finding the Fourth Proportional to 10,861.31, 14,986.16 and 6,612.26

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Solution

The fourth proportional to 10,861.31, 14,986.16 and 6,612.26 is: 9,123.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,861.31 : 14,986.16 = 6,612.26 : x
  2. Step 2: Convert to fraction form
    10,861.31/14,986.16 = 6,612.26/x
  3. Step 3: Cross multiply
    10,861.31x = 14,986.16 × 6,612.26
  4. Step 4: Simplify right side
    10,861.31x = 99,092,278.33
  5. Step 5: Solve for x
    x = 99,092,278.33/10,861.31
  6. Step 6: Final answer
    x = 9,123.42

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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.