Home / 11,148.42-15,381.76-6,897.44

Finding the Fourth Proportional to 11,148.42, 15,381.76 and 6,897.44

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Solution

The fourth proportional to 11,148.42, 15,381.76 and 6,897.44 is: 9,516.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,148.42 : 15,381.76 = 6,897.44 : x
  2. Step 2: Convert to fraction form
    11,148.42/15,381.76 = 6,897.44/x
  3. Step 3: Cross multiply
    11,148.42x = 15,381.76 × 6,897.44
  4. Step 4: Simplify right side
    11,148.42x = 106,094,766.69
  5. Step 5: Solve for x
    x = 106,094,766.69/11,148.42
  6. Step 6: Final answer
    x = 9,516.57

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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.