Home / 11,331.57-15,637.91-6,856.14

Finding the Fourth Proportional to 11,331.57, 15,637.91 and 6,856.14

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Solution

The fourth proportional to 11,331.57, 15,637.91 and 6,856.14 is: 9,461.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,331.57 : 15,637.91 = 6,856.14 : x
  2. Step 2: Convert to fraction form
    11,331.57/15,637.91 = 6,856.14/x
  3. Step 3: Cross multiply
    11,331.57x = 15,637.91 × 6,856.14
  4. Step 4: Simplify right side
    11,331.57x = 107,215,665.99
  5. Step 5: Solve for x
    x = 107,215,665.99/11,331.57
  6. Step 6: Final answer
    x = 9,461.68

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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.