Home / 7,961.41-10,987.28-5,313.25

Finding the Fourth Proportional to 7,961.41, 10,987.28 and 5,313.25

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Solution

The fourth proportional to 7,961.41, 10,987.28 and 5,313.25 is: 7,332.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,961.41 : 10,987.28 = 5,313.25 : x
  2. Step 2: Convert to fraction form
    7,961.41/10,987.28 = 5,313.25/x
  3. Step 3: Cross multiply
    7,961.41x = 10,987.28 × 5,313.25
  4. Step 4: Simplify right side
    7,961.41x = 58,378,165.46
  5. Step 5: Solve for x
    x = 58,378,165.46/7,961.41
  6. Step 6: Final answer
    x = 7,332.64

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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.