Home / 8,210.56-11,331.86-5,223.28

Finding the Fourth Proportional to 8,210.56, 11,331.86 and 5,223.28

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Solution

The fourth proportional to 8,210.56, 11,331.86 and 5,223.28 is: 7,208.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,210.56 : 11,331.86 = 5,223.28 : x
  2. Step 2: Convert to fraction form
    8,210.56/11,331.86 = 5,223.28/x
  3. Step 3: Cross multiply
    8,210.56x = 11,331.86 × 5,223.28
  4. Step 4: Simplify right side
    8,210.56x = 59,189,477.70
  5. Step 5: Solve for x
    x = 59,189,477.70/8,210.56
  6. Step 6: Final answer
    x = 7,208.95

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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.