Home / 6,853.05-10,269.28-5,290.70

Finding the Fourth Proportional to 6,853.05, 10,269.28 and 5,290.70

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Solution

The fourth proportional to 6,853.05, 10,269.28 and 5,290.70 is: 7,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,853.05 : 10,269.28 = 5,290.70 : x
  2. Step 2: Convert to fraction form
    6,853.05/10,269.28 = 5,290.70/x
  3. Step 3: Cross multiply
    6,853.05x = 10,269.28 × 5,290.70
  4. Step 4: Simplify right side
    6,853.05x = 54,331,679.70
  5. Step 5: Solve for x
    x = 54,331,679.70/6,853.05
  6. Step 6: Final answer
    x = 7,928.10

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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.