Home / 15,079.44-20,815.08-9,788.52

Finding the Fourth Proportional to 15,079.44, 20,815.08 and 9,788.52

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Solution

The fourth proportional to 15,079.44, 20,815.08 and 9,788.52 is: 13,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,079.44 : 20,815.08 = 9,788.52 : x
  2. Step 2: Convert to fraction form
    15,079.44/20,815.08 = 9,788.52/x
  3. Step 3: Cross multiply
    15,079.44x = 20,815.08 × 9,788.52
  4. Step 4: Simplify right side
    15,079.44x = 203,748,826.88
  5. Step 5: Solve for x
    x = 203,748,826.88/15,079.44
  6. Step 6: Final answer
    x = 13,511.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.