Home / 10,118.55-15,177.74-5,676.21

Finding the Fourth Proportional to 10,118.55, 15,177.74 and 5,676.21

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Solution

The fourth proportional to 10,118.55, 15,177.74 and 5,676.21 is: 8,514.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,118.55 : 15,177.74 = 5,676.21 : x
  2. Step 2: Convert to fraction form
    10,118.55/15,177.74 = 5,676.21/x
  3. Step 3: Cross multiply
    10,118.55x = 15,177.74 × 5,676.21
  4. Step 4: Simplify right side
    10,118.55x = 86,152,011.18
  5. Step 5: Solve for x
    x = 86,152,011.18/10,118.55
  6. Step 6: Final answer
    x = 8,514.26

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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.