Home / 9,400.32-12,972.96-5,208.48

Finding the Fourth Proportional to 9,400.32, 12,972.96 and 5,208.48

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Solution

The fourth proportional to 9,400.32, 12,972.96 and 5,208.48 is: 7,187.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,400.32 : 12,972.96 = 5,208.48 : x
  2. Step 2: Convert to fraction form
    9,400.32/12,972.96 = 5,208.48/x
  3. Step 3: Cross multiply
    9,400.32x = 12,972.96 × 5,208.48
  4. Step 4: Simplify right side
    9,400.32x = 67,569,402.70
  5. Step 5: Solve for x
    x = 67,569,402.70/9,400.32
  6. Step 6: Final answer
    x = 7,187.99

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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.