Home / 13,318.66-19,987.98-5,006.86

Finding the Fourth Proportional to 13,318.66, 19,987.98 and 5,006.86

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Solution

The fourth proportional to 13,318.66, 19,987.98 and 5,006.86 is: 7,514.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,318.66 : 19,987.98 = 5,006.86 : x
  2. Step 2: Convert to fraction form
    13,318.66/19,987.98 = 5,006.86/x
  3. Step 3: Cross multiply
    13,318.66x = 19,987.98 × 5,006.86
  4. Step 4: Simplify right side
    13,318.66x = 100,077,017.54
  5. Step 5: Solve for x
    x = 100,077,017.54/13,318.66
  6. Step 6: Final answer
    x = 7,514.05

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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.