Home / 11,718.16-16,154.24-8,355.14

Finding the Fourth Proportional to 11,718.16, 16,154.24 and 8,355.14

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Solution

The fourth proportional to 11,718.16, 16,154.24 and 8,355.14 is: 11,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.16 : 16,154.24 = 8,355.14 : x
  2. Step 2: Convert to fraction form
    11,718.16/16,154.24 = 8,355.14/x
  3. Step 3: Cross multiply
    11,718.16x = 16,154.24 × 8,355.14
  4. Step 4: Simplify right side
    11,718.16x = 134,970,965.69
  5. Step 5: Solve for x
    x = 134,970,965.69/11,718.16
  6. Step 6: Final answer
    x = 11,518.10

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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.