Home / 13,124.73-19,686.75-4,240.05

Finding the Fourth Proportional to 13,124.73, 19,686.75 and 4,240.05

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Solution

The fourth proportional to 13,124.73, 19,686.75 and 4,240.05 is: 6,359.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,124.73 : 19,686.75 = 4,240.05 : x
  2. Step 2: Convert to fraction form
    13,124.73/19,686.75 = 4,240.05/x
  3. Step 3: Cross multiply
    13,124.73x = 19,686.75 × 4,240.05
  4. Step 4: Simplify right side
    13,124.73x = 83,472,714.61
  5. Step 5: Solve for x
    x = 83,472,714.61/13,124.73
  6. Step 6: Final answer
    x = 6,359.95

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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.