Home / 7,888.39-10,879.41-5,903.69

Finding the Fourth Proportional to 7,888.39, 10,879.41 and 5,903.69

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Solution

The fourth proportional to 7,888.39, 10,879.41 and 5,903.69 is: 8,142.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,888.39 : 10,879.41 = 5,903.69 : x
  2. Step 2: Convert to fraction form
    7,888.39/10,879.41 = 5,903.69/x
  3. Step 3: Cross multiply
    7,888.39x = 10,879.41 × 5,903.69
  4. Step 4: Simplify right side
    7,888.39x = 64,228,631.76
  5. Step 5: Solve for x
    x = 64,228,631.76/7,888.39
  6. Step 6: Final answer
    x = 8,142.18

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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.