Home / 11,029.42-15,214.53-6,988.84

Finding the Fourth Proportional to 11,029.42, 15,214.53 and 6,988.84

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Solution

The fourth proportional to 11,029.42, 15,214.53 and 6,988.84 is: 9,640.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,029.42 : 15,214.53 = 6,988.84 : x
  2. Step 2: Convert to fraction form
    11,029.42/15,214.53 = 6,988.84/x
  3. Step 3: Cross multiply
    11,029.42x = 15,214.53 × 6,988.84
  4. Step 4: Simplify right side
    11,029.42x = 106,331,915.85
  5. Step 5: Solve for x
    x = 106,331,915.85/11,029.42
  6. Step 6: Final answer
    x = 9,640.75

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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.