Home / 11,718.22-16,154.33-8,355.21

Finding the Fourth Proportional to 11,718.22, 16,154.33 and 8,355.21

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Solution

The fourth proportional to 11,718.22, 16,154.33 and 8,355.21 is: 11,518.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.22 : 16,154.33 = 8,355.21 : x
  2. Step 2: Convert to fraction form
    11,718.22/16,154.33 = 8,355.21/x
  3. Step 3: Cross multiply
    11,718.22x = 16,154.33 × 8,355.21
  4. Step 4: Simplify right side
    11,718.22x = 134,972,697.01
  5. Step 5: Solve for x
    x = 134,972,697.01/11,718.22
  6. Step 6: Final answer
    x = 11,518.19

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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.