Home / 13,246.54-18,275.56-8,205.51

Finding the Fourth Proportional to 13,246.54, 18,275.56 and 8,205.51

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Solution

The fourth proportional to 13,246.54, 18,275.56 and 8,205.51 is: 11,320.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.54 : 18,275.56 = 8,205.51 : x
  2. Step 2: Convert to fraction form
    13,246.54/18,275.56 = 8,205.51/x
  3. Step 3: Cross multiply
    13,246.54x = 18,275.56 × 8,205.51
  4. Step 4: Simplify right side
    13,246.54x = 149,960,290.34
  5. Step 5: Solve for x
    x = 149,960,290.34/13,246.54
  6. Step 6: Final answer
    x = 11,320.71

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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.