Home / 10,931.19-15,083.82-6,150.21

Finding the Fourth Proportional to 10,931.19, 15,083.82 and 6,150.21

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Solution

The fourth proportional to 10,931.19, 15,083.82 and 6,150.21 is: 8,486.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,931.19 : 15,083.82 = 6,150.21 : x
  2. Step 2: Convert to fraction form
    10,931.19/15,083.82 = 6,150.21/x
  3. Step 3: Cross multiply
    10,931.19x = 15,083.82 × 6,150.21
  4. Step 4: Simplify right side
    10,931.19x = 92,768,660.60
  5. Step 5: Solve for x
    x = 92,768,660.60/10,931.19
  6. Step 6: Final answer
    x = 8,486.60

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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.