Home / 11,279.18-15,564.62-6,243.21

Finding the Fourth Proportional to 11,279.18, 15,564.62 and 6,243.21

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Solution

The fourth proportional to 11,279.18, 15,564.62 and 6,243.21 is: 8,615.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,279.18 : 15,564.62 = 6,243.21 : x
  2. Step 2: Convert to fraction form
    11,279.18/15,564.62 = 6,243.21/x
  3. Step 3: Cross multiply
    11,279.18x = 15,564.62 × 6,243.21
  4. Step 4: Simplify right side
    11,279.18x = 97,173,206.84
  5. Step 5: Solve for x
    x = 97,173,206.84/11,279.18
  6. Step 6: Final answer
    x = 8,615.27

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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.