Home / 8,220.08-11,347.46-5,240

Finding the Fourth Proportional to 8,220.08, 11,347.46 and 5,240

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Solution

The fourth proportional to 8,220.08, 11,347.46 and 5,240 is: 7,233.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,220.08 : 11,347.46 = 5,240 : x
  2. Step 2: Convert to fraction form
    8,220.08/11,347.46 = 5,240/x
  3. Step 3: Cross multiply
    8,220.08x = 11,347.46 × 5,240
  4. Step 4: Simplify right side
    8,220.08x = 59,460,690.40
  5. Step 5: Solve for x
    x = 59,460,690.40/8,220.08
  6. Step 6: Final answer
    x = 7,233.59

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Double scale
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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.