Home / 8,490.14-12,740.16-3,559.37

Finding the Fourth Proportional to 8,490.14, 12,740.16 and 3,559.37

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Solution

The fourth proportional to 8,490.14, 12,740.16 and 3,559.37 is: 5,341.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,490.14 : 12,740.16 = 3,559.37 : x
  2. Step 2: Convert to fraction form
    8,490.14/12,740.16 = 3,559.37/x
  3. Step 3: Cross multiply
    8,490.14x = 12,740.16 × 3,559.37
  4. Step 4: Simplify right side
    8,490.14x = 45,346,879.60
  5. Step 5: Solve for x
    x = 45,346,879.60/8,490.14
  6. Step 6: Final answer
    x = 5,341.13

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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.