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Finding the Fourth Proportional to 7,396.95, 10,209.48 and 4,879.51

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Solution

The fourth proportional to 7,396.95, 10,209.48 and 4,879.51 is: 6,734.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,396.95 : 10,209.48 = 4,879.51 : x
  2. Step 2: Convert to fraction form
    7,396.95/10,209.48 = 4,879.51/x
  3. Step 3: Cross multiply
    7,396.95x = 10,209.48 × 4,879.51
  4. Step 4: Simplify right side
    7,396.95x = 49,817,259.75
  5. Step 5: Solve for x
    x = 49,817,259.75/7,396.95
  6. Step 6: Final answer
    x = 6,734.84

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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.