Home / 8,147.07-11,242.95-4,421.07

Finding the Fourth Proportional to 8,147.07, 11,242.95 and 4,421.07

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Solution

The fourth proportional to 8,147.07, 11,242.95 and 4,421.07 is: 6,101.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,147.07 : 11,242.95 = 4,421.07 : x
  2. Step 2: Convert to fraction form
    8,147.07/11,242.95 = 4,421.07/x
  3. Step 3: Cross multiply
    8,147.07x = 11,242.95 × 4,421.07
  4. Step 4: Simplify right side
    8,147.07x = 49,705,868.96
  5. Step 5: Solve for x
    x = 49,705,868.96/8,147.07
  6. Step 6: Final answer
    x = 6,101.07

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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.