Home / 7,835.87-10,815.32-5,036.51

Finding the Fourth Proportional to 7,835.87, 10,815.32 and 5,036.51

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Solution

The fourth proportional to 7,835.87, 10,815.32 and 5,036.51 is: 6,951.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,835.87 : 10,815.32 = 5,036.51 : x
  2. Step 2: Convert to fraction form
    7,835.87/10,815.32 = 5,036.51/x
  3. Step 3: Cross multiply
    7,835.87x = 10,815.32 × 5,036.51
  4. Step 4: Simplify right side
    7,835.87x = 54,471,467.33
  5. Step 5: Solve for x
    x = 54,471,467.33/7,835.87
  6. Step 6: Final answer
    x = 6,951.55

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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.