Home / 9,400.18-12,972.26-5,208.42

Finding the Fourth Proportional to 9,400.18, 12,972.26 and 5,208.42

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Solution

The fourth proportional to 9,400.18, 12,972.26 and 5,208.42 is: 7,187.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.18 : 12,972.26 = 5,208.42 : x
  2. Step 2: Convert to fraction form
    9,400.18/12,972.26 = 5,208.42/x
  3. Step 3: Cross multiply
    9,400.18x = 12,972.26 × 5,208.42
  4. Step 4: Simplify right side
    9,400.18x = 67,564,978.43
  5. Step 5: Solve for x
    x = 67,564,978.43/9,400.18
  6. Step 6: Final answer
    x = 7,187.63

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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.