Home / 10,519.48-15,779.22-3,124.09

Finding the Fourth Proportional to 10,519.48, 15,779.22 and 3,124.09

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Solution

The fourth proportional to 10,519.48, 15,779.22 and 3,124.09 is: 4,686.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,519.48 : 15,779.22 = 3,124.09 : x
  2. Step 2: Convert to fraction form
    10,519.48/15,779.22 = 3,124.09/x
  3. Step 3: Cross multiply
    10,519.48x = 15,779.22 × 3,124.09
  4. Step 4: Simplify right side
    10,519.48x = 49,295,703.41
  5. Step 5: Solve for x
    x = 49,295,703.41/10,519.48
  6. Step 6: Final answer
    x = 4,686.14

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Similar ratio
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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.