Home / 19,374.54-29,073.02-8,128.87

Finding the Fourth Proportional to 19,374.54, 29,073.02 and 8,128.87

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Solution

The fourth proportional to 19,374.54, 29,073.02 and 8,128.87 is: 12,198.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,374.54 : 29,073.02 = 8,128.87 : x
  2. Step 2: Convert to fraction form
    19,374.54/29,073.02 = 8,128.87/x
  3. Step 3: Cross multiply
    19,374.54x = 29,073.02 × 8,128.87
  4. Step 4: Simplify right side
    19,374.54x = 236,330,686.76
  5. Step 5: Solve for x
    x = 236,330,686.76/19,374.54
  6. Step 6: Final answer
    x = 12,198.00

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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.