Home / 14,638.40-21,905.76-9,958.88

Finding the Fourth Proportional to 14,638.40, 21,905.76 and 9,958.88

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Solution

The fourth proportional to 14,638.40, 21,905.76 and 9,958.88 is: 14,903.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,638.40 : 21,905.76 = 9,958.88 : x
  2. Step 2: Convert to fraction form
    14,638.40/21,905.76 = 9,958.88/x
  3. Step 3: Cross multiply
    14,638.40x = 21,905.76 × 9,958.88
  4. Step 4: Simplify right side
    14,638.40x = 218,156,835.15
  5. Step 5: Solve for x
    x = 218,156,835.15/14,638.40
  6. Step 6: Final answer
    x = 14,903.05

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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.