Home / 19,498.78-29,259.12-7,812.94

Finding the Fourth Proportional to 19,498.78, 29,259.12 and 7,812.94

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Solution

The fourth proportional to 19,498.78, 29,259.12 and 7,812.94 is: 11,723.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,498.78 : 29,259.12 = 7,812.94 : x
  2. Step 2: Convert to fraction form
    19,498.78/29,259.12 = 7,812.94/x
  3. Step 3: Cross multiply
    19,498.78x = 29,259.12 × 7,812.94
  4. Step 4: Simplify right side
    19,498.78x = 228,599,749.01
  5. Step 5: Solve for x
    x = 228,599,749.01/19,498.78
  6. Step 6: Final answer
    x = 11,723.80

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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.