Home / 13,701.40-20,560.20-9,994.30

Finding the Fourth Proportional to 13,701.40, 20,560.20 and 9,994.30

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Solution

The fourth proportional to 13,701.40, 20,560.20 and 9,994.30 is: 14,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,701.40 : 20,560.20 = 9,994.30 : x
  2. Step 2: Convert to fraction form
    13,701.40/20,560.20 = 9,994.30/x
  3. Step 3: Cross multiply
    13,701.40x = 20,560.20 × 9,994.30
  4. Step 4: Simplify right side
    13,701.40x = 205,484,806.86
  5. Step 5: Solve for x
    x = 205,484,806.86/13,701.40
  6. Step 6: Final answer
    x = 14,997.36

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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.