Home / 7,855.13-10,840.16-4,270.11

Finding the Fourth Proportional to 7,855.13, 10,840.16 and 4,270.11

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Solution

The fourth proportional to 7,855.13, 10,840.16 and 4,270.11 is: 5,892.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,855.13 : 10,840.16 = 4,270.11 : x
  2. Step 2: Convert to fraction form
    7,855.13/10,840.16 = 4,270.11/x
  3. Step 3: Cross multiply
    7,855.13x = 10,840.16 × 4,270.11
  4. Step 4: Simplify right side
    7,855.13x = 46,288,675.62
  5. Step 5: Solve for x
    x = 46,288,675.62/7,855.13
  6. Step 6: Final answer
    x = 5,892.80

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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.