Home / 13,990.08-20,989.98-6,204.36

Finding the Fourth Proportional to 13,990.08, 20,989.98 and 6,204.36

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Solution

The fourth proportional to 13,990.08, 20,989.98 and 6,204.36 is: 9,308.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.08 : 20,989.98 = 6,204.36 : x
  2. Step 2: Convert to fraction form
    13,990.08/20,989.98 = 6,204.36/x
  3. Step 3: Cross multiply
    13,990.08x = 20,989.98 × 6,204.36
  4. Step 4: Simplify right side
    13,990.08x = 130,229,392.31
  5. Step 5: Solve for x
    x = 130,229,392.31/13,990.08
  6. Step 6: Final answer
    x = 9,308.70

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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.