Home / 7,840.61-11,767.27-4,145.12

Finding the Fourth Proportional to 7,840.61, 11,767.27 and 4,145.12

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Solution

The fourth proportional to 7,840.61, 11,767.27 and 4,145.12 is: 6,221.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,840.61 : 11,767.27 = 4,145.12 : x
  2. Step 2: Convert to fraction form
    7,840.61/11,767.27 = 4,145.12/x
  3. Step 3: Cross multiply
    7,840.61x = 11,767.27 × 4,145.12
  4. Step 4: Simplify right side
    7,840.61x = 48,776,677.02
  5. Step 5: Solve for x
    x = 48,776,677.02/7,840.61
  6. Step 6: Final answer
    x = 6,221.03

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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.