Home / 11,886.10-16,402.81-6,581.25

Finding the Fourth Proportional to 11,886.10, 16,402.81 and 6,581.25

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Solution

The fourth proportional to 11,886.10, 16,402.81 and 6,581.25 is: 9,082.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,886.10 : 16,402.81 = 6,581.25 : x
  2. Step 2: Convert to fraction form
    11,886.10/16,402.81 = 6,581.25/x
  3. Step 3: Cross multiply
    11,886.10x = 16,402.81 × 6,581.25
  4. Step 4: Simplify right side
    11,886.10x = 107,950,976.86
  5. Step 5: Solve for x
    x = 107,950,976.86/11,886.10
  6. Step 6: Final answer
    x = 9,082.12

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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.