Home / 19,180.59-28,774.83-8,087.31

Finding the Fourth Proportional to 19,180.59, 28,774.83 and 8,087.31

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Solution

The fourth proportional to 19,180.59, 28,774.83 and 8,087.31 is: 12,132.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,180.59 : 28,774.83 = 8,087.31 : x
  2. Step 2: Convert to fraction form
    19,180.59/28,774.83 = 8,087.31/x
  3. Step 3: Cross multiply
    19,180.59x = 28,774.83 × 8,087.31
  4. Step 4: Simplify right side
    19,180.59x = 232,710,970.41
  5. Step 5: Solve for x
    x = 232,710,970.41/19,180.59
  6. Step 6: Final answer
    x = 12,132.63

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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.