Home / 10,137.47-14,003.21-8,155.49

Finding the Fourth Proportional to 10,137.47, 14,003.21 and 8,155.49

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Solution

The fourth proportional to 10,137.47, 14,003.21 and 8,155.49 is: 11,265.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,137.47 : 14,003.21 = 8,155.49 : x
  2. Step 2: Convert to fraction form
    10,137.47/14,003.21 = 8,155.49/x
  3. Step 3: Cross multiply
    10,137.47x = 14,003.21 × 8,155.49
  4. Step 4: Simplify right side
    10,137.47x = 114,203,033.35
  5. Step 5: Solve for x
    x = 114,203,033.35/10,137.47
  6. Step 6: Final answer
    x = 11,265.44

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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.