Home / 7,731.36-10,669.68-5,080.32

Finding the Fourth Proportional to 7,731.36, 10,669.68 and 5,080.32

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Solution

The fourth proportional to 7,731.36, 10,669.68 and 5,080.32 is: 7,011.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,731.36 : 10,669.68 = 5,080.32 : x
  2. Step 2: Convert to fraction form
    7,731.36/10,669.68 = 5,080.32/x
  3. Step 3: Cross multiply
    7,731.36x = 10,669.68 × 5,080.32
  4. Step 4: Simplify right side
    7,731.36x = 54,205,388.70
  5. Step 5: Solve for x
    x = 54,205,388.70/7,731.36
  6. Step 6: Final answer
    x = 7,011.11

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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.