Home / 13,951.02-20,900.10-7,701.66

Finding the Fourth Proportional to 13,951.02, 20,900.10 and 7,701.66

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Solution

The fourth proportional to 13,951.02, 20,900.10 and 7,701.66 is: 11,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,951.02 : 20,900.10 = 7,701.66 : x
  2. Step 2: Convert to fraction form
    13,951.02/20,900.10 = 7,701.66/x
  3. Step 3: Cross multiply
    13,951.02x = 20,900.10 × 7,701.66
  4. Step 4: Simplify right side
    13,951.02x = 160,965,464.17
  5. Step 5: Solve for x
    x = 160,965,464.17/13,951.02
  6. Step 6: Final answer
    x = 11,537.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.