Home / 7,139.19-10,690.25-4,924.85

Finding the Fourth Proportional to 7,139.19, 10,690.25 and 4,924.85

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Solution

The fourth proportional to 7,139.19, 10,690.25 and 4,924.85 is: 7,374.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139.19 : 10,690.25 = 4,924.85 : x
  2. Step 2: Convert to fraction form
    7,139.19/10,690.25 = 4,924.85/x
  3. Step 3: Cross multiply
    7,139.19x = 10,690.25 × 4,924.85
  4. Step 4: Simplify right side
    7,139.19x = 52,647,901.32
  5. Step 5: Solve for x
    x = 52,647,901.32/7,139.19
  6. Step 6: Final answer
    x = 7,374.49

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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.