Home / 13,962.10-20,914.80-8,680.90

Finding the Fourth Proportional to 13,962.10, 20,914.80 and 8,680.90

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Solution

The fourth proportional to 13,962.10, 20,914.80 and 8,680.90 is: 13,003.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,962.10 : 20,914.80 = 8,680.90 : x
  2. Step 2: Convert to fraction form
    13,962.10/20,914.80 = 8,680.90/x
  3. Step 3: Cross multiply
    13,962.10x = 20,914.80 × 8,680.90
  4. Step 4: Simplify right side
    13,962.10x = 181,559,287.32
  5. Step 5: Solve for x
    x = 181,559,287.32/13,962.10
  6. Step 6: Final answer
    x = 13,003.72

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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.