Home / 11,886.75-16,403.45-6,581.52

Finding the Fourth Proportional to 11,886.75, 16,403.45 and 6,581.52

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Solution

The fourth proportional to 11,886.75, 16,403.45 and 6,581.52 is: 9,082.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.75 : 16,403.45 = 6,581.52 : x
  2. Step 2: Convert to fraction form
    11,886.75/16,403.45 = 6,581.52/x
  3. Step 3: Cross multiply
    11,886.75x = 16,403.45 × 6,581.52
  4. Step 4: Simplify right side
    11,886.75x = 107,959,601.34
  5. Step 5: Solve for x
    x = 107,959,601.34/11,886.75
  6. Step 6: Final answer
    x = 9,082.35

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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.