Home / 13,990.56-21,000.43-6,204.84

Finding the Fourth Proportional to 13,990.56, 21,000.43 and 6,204.84

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Solution

The fourth proportional to 13,990.56, 21,000.43 and 6,204.84 is: 9,313.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,990.56 : 21,000.43 = 6,204.84 : x
  2. Step 2: Convert to fraction form
    13,990.56/21,000.43 = 6,204.84/x
  3. Step 3: Cross multiply
    13,990.56x = 21,000.43 × 6,204.84
  4. Step 4: Simplify right side
    13,990.56x = 130,304,308.08
  5. Step 5: Solve for x
    x = 130,304,308.08/13,990.56
  6. Step 6: Final answer
    x = 9,313.73

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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.