Home / 11,620.39-16,036.28-6,315.29

Finding the Fourth Proportional to 11,620.39, 16,036.28 and 6,315.29

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Solution

The fourth proportional to 11,620.39, 16,036.28 and 6,315.29 is: 8,715.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,620.39 : 16,036.28 = 6,315.29 : x
  2. Step 2: Convert to fraction form
    11,620.39/16,036.28 = 6,315.29/x
  3. Step 3: Cross multiply
    11,620.39x = 16,036.28 × 6,315.29
  4. Step 4: Simplify right side
    11,620.39x = 101,273,758.72
  5. Step 5: Solve for x
    x = 101,273,758.72/11,620.39
  6. Step 6: Final answer
    x = 8,715.18

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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.