Home / 8,127.44-11,217.48-5,331.28

Finding the Fourth Proportional to 8,127.44, 11,217.48 and 5,331.28

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Solution

The fourth proportional to 8,127.44, 11,217.48 and 5,331.28 is: 7,358.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,127.44 : 11,217.48 = 5,331.28 : x
  2. Step 2: Convert to fraction form
    8,127.44/11,217.48 = 5,331.28/x
  3. Step 3: Cross multiply
    8,127.44x = 11,217.48 × 5,331.28
  4. Step 4: Simplify right side
    8,127.44x = 59,803,526.77
  5. Step 5: Solve for x
    x = 59,803,526.77/8,127.44
  6. Step 6: Final answer
    x = 7,358.22

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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.