Home / 13,795.80-20,698.02-8,871

Finding the Fourth Proportional to 13,795.80, 20,698.02 and 8,871

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Solution

The fourth proportional to 13,795.80, 20,698.02 and 8,871 is: 13,309.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,795.80 : 20,698.02 = 8,871 : x
  2. Step 2: Convert to fraction form
    13,795.80/20,698.02 = 8,871/x
  3. Step 3: Cross multiply
    13,795.80x = 20,698.02 × 8,871
  4. Step 4: Simplify right side
    13,795.80x = 183,612,135.42
  5. Step 5: Solve for x
    x = 183,612,135.42/13,795.80
  6. Step 6: Final answer
    x = 13,309.28

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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.