Home / 19,182.90-28,772.52-8,653.62

Finding the Fourth Proportional to 19,182.90, 28,772.52 and 8,653.62

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Solution

The fourth proportional to 19,182.90, 28,772.52 and 8,653.62 is: 12,979.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,182.90 : 28,772.52 = 8,653.62 : x
  2. Step 2: Convert to fraction form
    19,182.90/28,772.52 = 8,653.62/x
  3. Step 3: Cross multiply
    19,182.90x = 28,772.52 × 8,653.62
  4. Step 4: Simplify right side
    19,182.90x = 248,986,454.52
  5. Step 5: Solve for x
    x = 248,986,454.52/19,182.90
  6. Step 6: Final answer
    x = 12,979.60

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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.