Home / 10,963.53-15,128.55-6,486.39

Finding the Fourth Proportional to 10,963.53, 15,128.55 and 6,486.39

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Solution

The fourth proportional to 10,963.53, 15,128.55 and 6,486.39 is: 8,950.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,963.53 : 15,128.55 = 6,486.39 : x
  2. Step 2: Convert to fraction form
    10,963.53/15,128.55 = 6,486.39/x
  3. Step 3: Cross multiply
    10,963.53x = 15,128.55 × 6,486.39
  4. Step 4: Simplify right side
    10,963.53x = 98,129,675.43
  5. Step 5: Solve for x
    x = 98,129,675.43/10,963.53
  6. Step 6: Final answer
    x = 8,950.55

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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.