Home / 7,338.40-11,015.70-5,702.20

Finding the Fourth Proportional to 7,338.40, 11,015.70 and 5,702.20

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Solution

The fourth proportional to 7,338.40, 11,015.70 and 5,702.20 is: 8,559.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,338.40 : 11,015.70 = 5,702.20 : x
  2. Step 2: Convert to fraction form
    7,338.40/11,015.70 = 5,702.20/x
  3. Step 3: Cross multiply
    7,338.40x = 11,015.70 × 5,702.20
  4. Step 4: Simplify right side
    7,338.40x = 62,813,724.54
  5. Step 5: Solve for x
    x = 62,813,724.54/7,338.40
  6. Step 6: Final answer
    x = 8,559.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.