Home / 13,228.88-18,256.02-7,260.44

Finding the Fourth Proportional to 13,228.88, 18,256.02 and 7,260.44

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Solution

The fourth proportional to 13,228.88, 18,256.02 and 7,260.44 is: 10,019.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,228.88 : 18,256.02 = 7,260.44 : x
  2. Step 2: Convert to fraction form
    13,228.88/18,256.02 = 7,260.44/x
  3. Step 3: Cross multiply
    13,228.88x = 18,256.02 × 7,260.44
  4. Step 4: Simplify right side
    13,228.88x = 132,546,737.85
  5. Step 5: Solve for x
    x = 132,546,737.85/13,228.88
  6. Step 6: Final answer
    x = 10,019.50

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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.