Home / 7,345.32-10,137.15-4,202.12

Finding the Fourth Proportional to 7,345.32, 10,137.15 and 4,202.12

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Solution

The fourth proportional to 7,345.32, 10,137.15 and 4,202.12 is: 5,799.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,345.32 : 10,137.15 = 4,202.12 : x
  2. Step 2: Convert to fraction form
    7,345.32/10,137.15 = 4,202.12/x
  3. Step 3: Cross multiply
    7,345.32x = 10,137.15 × 4,202.12
  4. Step 4: Simplify right side
    7,345.32x = 42,597,470.07
  5. Step 5: Solve for x
    x = 42,597,470.07/7,345.32
  6. Step 6: Final answer
    x = 5,799.27

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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.