Home / 11,319.83-16,984.25-5,078.15

Finding the Fourth Proportional to 11,319.83, 16,984.25 and 5,078.15

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Solution

The fourth proportional to 11,319.83, 16,984.25 and 5,078.15 is: 7,619.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,319.83 : 16,984.25 = 5,078.15 : x
  2. Step 2: Convert to fraction form
    11,319.83/16,984.25 = 5,078.15/x
  3. Step 3: Cross multiply
    11,319.83x = 16,984.25 × 5,078.15
  4. Step 4: Simplify right side
    11,319.83x = 86,248,543.75
  5. Step 5: Solve for x
    x = 86,248,543.75/11,319.83
  6. Step 6: Final answer
    x = 7,619.24

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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.