Home / 8,501.28-11,727-5,316.72

Finding the Fourth Proportional to 8,501.28, 11,727 and 5,316.72

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Solution

The fourth proportional to 8,501.28, 11,727 and 5,316.72 is: 7,334.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,501.28 : 11,727 = 5,316.72 : x
  2. Step 2: Convert to fraction form
    8,501.28/11,727 = 5,316.72/x
  3. Step 3: Cross multiply
    8,501.28x = 11,727 × 5,316.72
  4. Step 4: Simplify right side
    8,501.28x = 62,349,175.44
  5. Step 5: Solve for x
    x = 62,349,175.44/8,501.28
  6. Step 6: Final answer
    x = 7,334.09

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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.