Home / 11,239.64-15,513.40-6,762.55

Finding the Fourth Proportional to 11,239.64, 15,513.40 and 6,762.55

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Solution

The fourth proportional to 11,239.64, 15,513.40 and 6,762.55 is: 9,333.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,239.64 : 15,513.40 = 6,762.55 : x
  2. Step 2: Convert to fraction form
    11,239.64/15,513.40 = 6,762.55/x
  3. Step 3: Cross multiply
    11,239.64x = 15,513.40 × 6,762.55
  4. Step 4: Simplify right side
    11,239.64x = 104,910,143.17
  5. Step 5: Solve for x
    x = 104,910,143.17/11,239.64
  6. Step 6: Final answer
    x = 9,333.94

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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.