Home / 8,677.20-13,018.16-3,486.72

Finding the Fourth Proportional to 8,677.20, 13,018.16 and 3,486.72

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Solution

The fourth proportional to 8,677.20, 13,018.16 and 3,486.72 is: 5,231.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,677.20 : 13,018.16 = 3,486.72 : x
  2. Step 2: Convert to fraction form
    8,677.20/13,018.16 = 3,486.72/x
  3. Step 3: Cross multiply
    8,677.20x = 13,018.16 × 3,486.72
  4. Step 4: Simplify right side
    8,677.20x = 45,390,678.84
  5. Step 5: Solve for x
    x = 45,390,678.84/8,677.20
  6. Step 6: Final answer
    x = 5,231.03

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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.