Home / 12,137.10-16,754.37-8,160.53

Finding the Fourth Proportional to 12,137.10, 16,754.37 and 8,160.53

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Solution

The fourth proportional to 12,137.10, 16,754.37 and 8,160.53 is: 11,265.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.10 : 16,754.37 = 8,160.53 : x
  2. Step 2: Convert to fraction form
    12,137.10/16,754.37 = 8,160.53/x
  3. Step 3: Cross multiply
    12,137.10x = 16,754.37 × 8,160.53
  4. Step 4: Simplify right side
    12,137.10x = 136,724,455.24
  5. Step 5: Solve for x
    x = 136,724,455.24/12,137.10
  6. Step 6: Final answer
    x = 11,265.00

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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.