Home / 19,186.12-28,779.24-5,335.12

Finding the Fourth Proportional to 19,186.12, 28,779.24 and 5,335.12

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Solution

The fourth proportional to 19,186.12, 28,779.24 and 5,335.12 is: 8,002.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,186.12 : 28,779.24 = 5,335.12 : x
  2. Step 2: Convert to fraction form
    19,186.12/28,779.24 = 5,335.12/x
  3. Step 3: Cross multiply
    19,186.12x = 28,779.24 × 5,335.12
  4. Step 4: Simplify right side
    19,186.12x = 153,540,698.91
  5. Step 5: Solve for x
    x = 153,540,698.91/19,186.12
  6. Step 6: Final answer
    x = 8,002.70

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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.