Home / 7,964.33-10,985.69-5,135.33

Finding the Fourth Proportional to 7,964.33, 10,985.69 and 5,135.33

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Solution

The fourth proportional to 7,964.33, 10,985.69 and 5,135.33 is: 7,083.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,964.33 : 10,985.69 = 5,135.33 : x
  2. Step 2: Convert to fraction form
    7,964.33/10,985.69 = 5,135.33/x
  3. Step 3: Cross multiply
    7,964.33x = 10,985.69 × 5,135.33
  4. Step 4: Simplify right side
    7,964.33x = 56,415,117.75
  5. Step 5: Solve for x
    x = 56,415,117.75/7,964.33
  6. Step 6: Final answer
    x = 7,083.47

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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.