Home / 12,015.39-16,581.25-6,710.21

Finding the Fourth Proportional to 12,015.39, 16,581.25 and 6,710.21

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Solution

The fourth proportional to 12,015.39, 16,581.25 and 6,710.21 is: 9,260.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,015.39 : 16,581.25 = 6,710.21 : x
  2. Step 2: Convert to fraction form
    12,015.39/16,581.25 = 6,710.21/x
  3. Step 3: Cross multiply
    12,015.39x = 16,581.25 × 6,710.21
  4. Step 4: Simplify right side
    12,015.39x = 111,263,669.56
  5. Step 5: Solve for x
    x = 111,263,669.56/12,015.39
  6. Step 6: Final answer
    x = 9,260.10

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Half scale
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Double 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.