Home / 13,990.06-20,999.68-6,204.34

Finding the Fourth Proportional to 13,990.06, 20,999.68 and 6,204.34

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Solution

The fourth proportional to 13,990.06, 20,999.68 and 6,204.34 is: 9,312.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.06 : 20,999.68 = 6,204.34 : x
  2. Step 2: Convert to fraction form
    13,990.06/20,999.68 = 6,204.34/x
  3. Step 3: Cross multiply
    13,990.06x = 20,999.68 × 6,204.34
  4. Step 4: Simplify right side
    13,990.06x = 130,289,154.61
  5. Step 5: Solve for x
    x = 130,289,154.61/13,990.06
  6. Step 6: Final answer
    x = 9,312.98

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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.