Home / 13,253.91-18,290.41-7,285.68

Finding the Fourth Proportional to 13,253.91, 18,290.41 and 7,285.68

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Solution

The fourth proportional to 13,253.91, 18,290.41 and 7,285.68 is: 10,054.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,253.91 : 18,290.41 = 7,285.68 : x
  2. Step 2: Convert to fraction form
    13,253.91/18,290.41 = 7,285.68/x
  3. Step 3: Cross multiply
    13,253.91x = 18,290.41 × 7,285.68
  4. Step 4: Simplify right side
    13,253.91x = 133,258,056.11
  5. Step 5: Solve for x
    x = 133,258,056.11/13,253.91
  6. Step 6: Final answer
    x = 10,054.24

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Double scale
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Similar ratio
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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.