Home / 13,373.61-18,464.55-8,339.87

Finding the Fourth Proportional to 13,373.61, 18,464.55 and 8,339.87

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Solution

The fourth proportional to 13,373.61, 18,464.55 and 8,339.87 is: 11,514.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,373.61 : 18,464.55 = 8,339.87 : x
  2. Step 2: Convert to fraction form
    13,373.61/18,464.55 = 8,339.87/x
  3. Step 3: Cross multiply
    13,373.61x = 18,464.55 × 8,339.87
  4. Step 4: Simplify right side
    13,373.61x = 153,991,939.17
  5. Step 5: Solve for x
    x = 153,991,939.17/13,373.61
  6. Step 6: Final answer
    x = 11,514.61

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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.