Home / 12,749.15-19,098.87-8,353.28

Finding the Fourth Proportional to 12,749.15, 19,098.87 and 8,353.28

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Solution

The fourth proportional to 12,749.15, 19,098.87 and 8,353.28 is: 12,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,749.15 : 19,098.87 = 8,353.28 : x
  2. Step 2: Convert to fraction form
    12,749.15/19,098.87 = 8,353.28/x
  3. Step 3: Cross multiply
    12,749.15x = 19,098.87 × 8,353.28
  4. Step 4: Simplify right side
    12,749.15x = 159,538,113.30
  5. Step 5: Solve for x
    x = 159,538,113.30/12,749.15
  6. Step 6: Final answer
    x = 12,513.63

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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.