Home / 13,212.88-19,829.28-4,900.72

Finding the Fourth Proportional to 13,212.88, 19,829.28 and 4,900.72

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Solution

The fourth proportional to 13,212.88, 19,829.28 and 4,900.72 is: 7,354.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,212.88 : 19,829.28 = 4,900.72 : x
  2. Step 2: Convert to fraction form
    13,212.88/19,829.28 = 4,900.72/x
  3. Step 3: Cross multiply
    13,212.88x = 19,829.28 × 4,900.72
  4. Step 4: Simplify right side
    13,212.88x = 97,177,749.08
  5. Step 5: Solve for x
    x = 97,177,749.08/13,212.88
  6. Step 6: Final answer
    x = 7,354.77

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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.