Home / 13,876.02-20,851.70-7,305.30

Finding the Fourth Proportional to 13,876.02, 20,851.70 and 7,305.30

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Solution

The fourth proportional to 13,876.02, 20,851.70 and 7,305.30 is: 10,977.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,876.02 : 20,851.70 = 7,305.30 : x
  2. Step 2: Convert to fraction form
    13,876.02/20,851.70 = 7,305.30/x
  3. Step 3: Cross multiply
    13,876.02x = 20,851.70 × 7,305.30
  4. Step 4: Simplify right side
    13,876.02x = 152,327,924.01
  5. Step 5: Solve for x
    x = 152,327,924.01/13,876.02
  6. Step 6: Final answer
    x = 10,977.78

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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.