Home / 11,718.19-16,154.29-8,355.17

Finding the Fourth Proportional to 11,718.19, 16,154.29 and 8,355.17

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Solution

The fourth proportional to 11,718.19, 16,154.29 and 8,355.17 is: 11,518.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,718.19 : 16,154.29 = 8,355.17 : x
  2. Step 2: Convert to fraction form
    11,718.19/16,154.29 = 8,355.17/x
  3. Step 3: Cross multiply
    11,718.19x = 16,154.29 × 8,355.17
  4. Step 4: Simplify right side
    11,718.19x = 134,971,797.40
  5. Step 5: Solve for x
    x = 134,971,797.40/11,718.19
  6. Step 6: Final answer
    x = 11,518.14

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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.