Home / 7,620.82-10,518.37-4,637.62

Finding the Fourth Proportional to 7,620.82, 10,518.37 and 4,637.62

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Solution

The fourth proportional to 7,620.82, 10,518.37 and 4,637.62 is: 6,400.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,620.82 : 10,518.37 = 4,637.62 : x
  2. Step 2: Convert to fraction form
    7,620.82/10,518.37 = 4,637.62/x
  3. Step 3: Cross multiply
    7,620.82x = 10,518.37 × 4,637.62
  4. Step 4: Simplify right side
    7,620.82x = 48,780,204.63
  5. Step 5: Solve for x
    x = 48,780,204.63/7,620.82
  6. Step 6: Final answer
    x = 6,400.91

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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.