Home / 13,258.38-18,296.31-7,289.70

Finding the Fourth Proportional to 13,258.38, 18,296.31 and 7,289.70

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Solution

The fourth proportional to 13,258.38, 18,296.31 and 7,289.70 is: 10,059.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,258.38 : 18,296.31 = 7,289.70 : x
  2. Step 2: Convert to fraction form
    13,258.38/18,296.31 = 7,289.70/x
  3. Step 3: Cross multiply
    13,258.38x = 18,296.31 × 7,289.70
  4. Step 4: Simplify right side
    13,258.38x = 133,374,611.01
  5. Step 5: Solve for x
    x = 133,374,611.01/13,258.38
  6. Step 6: Final answer
    x = 10,059.65

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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.