Home / 7,864.80-10,855.25-4,509.51

Finding the Fourth Proportional to 7,864.80, 10,855.25 and 4,509.51

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Solution

The fourth proportional to 7,864.80, 10,855.25 and 4,509.51 is: 6,224.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,864.80 : 10,855.25 = 4,509.51 : x
  2. Step 2: Convert to fraction form
    7,864.80/10,855.25 = 4,509.51/x
  3. Step 3: Cross multiply
    7,864.80x = 10,855.25 × 4,509.51
  4. Step 4: Simplify right side
    7,864.80x = 48,951,858.43
  5. Step 5: Solve for x
    x = 48,951,858.43/7,864.80
  6. Step 6: Final answer
    x = 6,224.17

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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.