Home / 13,311.60-19,967.96-4,989.44

Finding the Fourth Proportional to 13,311.60, 19,967.96 and 4,989.44

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Solution

The fourth proportional to 13,311.60, 19,967.96 and 4,989.44 is: 7,484.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.60 : 19,967.96 = 4,989.44 : x
  2. Step 2: Convert to fraction form
    13,311.60/19,967.96 = 4,989.44/x
  3. Step 3: Cross multiply
    13,311.60x = 19,967.96 × 4,989.44
  4. Step 4: Simplify right side
    13,311.60x = 99,628,938.34
  5. Step 5: Solve for x
    x = 99,628,938.34/13,311.60
  6. Step 6: Final answer
    x = 7,484.37

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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.