Home / 13,750.56-18,989.28-11,749.44

Finding the Fourth Proportional to 13,750.56, 18,989.28 and 11,749.44

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Solution

The fourth proportional to 13,750.56, 18,989.28 and 11,749.44 is: 16,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,750.56 : 18,989.28 = 11,749.44 : x
  2. Step 2: Convert to fraction form
    13,750.56/18,989.28 = 11,749.44/x
  3. Step 3: Cross multiply
    13,750.56x = 18,989.28 × 11,749.44
  4. Step 4: Simplify right side
    13,750.56x = 223,113,406.00
  5. Step 5: Solve for x
    x = 223,113,406.00/13,750.56
  6. Step 6: Final answer
    x = 16,225.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.