Home / 12,206.38-16,856.76-10,427.62

Finding the Fourth Proportional to 12,206.38, 16,856.76 and 10,427.62

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Solution

The fourth proportional to 12,206.38, 16,856.76 and 10,427.62 is: 14,400.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,206.38 : 16,856.76 = 10,427.62 : x
  2. Step 2: Convert to fraction form
    12,206.38/16,856.76 = 10,427.62/x
  3. Step 3: Cross multiply
    12,206.38x = 16,856.76 × 10,427.62
  4. Step 4: Simplify right side
    12,206.38x = 175,775,887.71
  5. Step 5: Solve for x
    x = 175,775,887.71/12,206.38
  6. Step 6: Final answer
    x = 14,400.33

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Half scale
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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.