Home / 11,278.94-15,564.72-6,243.16

Finding the Fourth Proportional to 11,278.94, 15,564.72 and 6,243.16

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Solution

The fourth proportional to 11,278.94, 15,564.72 and 6,243.16 is: 8,615.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.94 : 15,564.72 = 6,243.16 : x
  2. Step 2: Convert to fraction form
    11,278.94/15,564.72 = 6,243.16/x
  3. Step 3: Cross multiply
    11,278.94x = 15,564.72 × 6,243.16
  4. Step 4: Simplify right side
    11,278.94x = 97,173,006.10
  5. Step 5: Solve for x
    x = 97,173,006.10/11,278.94
  6. Step 6: Final answer
    x = 8,615.44

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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.