Home / 7,021.03-9,688.66-3,876.61

Finding the Fourth Proportional to 7,021.03, 9,688.66 and 3,876.61

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Solution

The fourth proportional to 7,021.03, 9,688.66 and 3,876.61 is: 5,349.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.03 : 9,688.66 = 3,876.61 : x
  2. Step 2: Convert to fraction form
    7,021.03/9,688.66 = 3,876.61/x
  3. Step 3: Cross multiply
    7,021.03x = 9,688.66 × 3,876.61
  4. Step 4: Simplify right side
    7,021.03x = 37,559,156.24
  5. Step 5: Solve for x
    x = 37,559,156.24/7,021.03
  6. Step 6: Final answer
    x = 5,349.52

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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.