Home / 7,855.13-10,839.80-4,269.93

Finding the Fourth Proportional to 7,855.13, 10,839.80 and 4,269.93

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Solution

The fourth proportional to 7,855.13, 10,839.80 and 4,269.93 is: 5,892.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.13 : 10,839.80 = 4,269.93 : x
  2. Step 2: Convert to fraction form
    7,855.13/10,839.80 = 4,269.93/x
  3. Step 3: Cross multiply
    7,855.13x = 10,839.80 × 4,269.93
  4. Step 4: Simplify right side
    7,855.13x = 46,285,187.21
  5. Step 5: Solve for x
    x = 46,285,187.21/7,855.13
  6. Step 6: Final answer
    x = 5,892.35

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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.