Home / 8,590.11-12,887.63-4,208.85

Finding the Fourth Proportional to 8,590.11, 12,887.63 and 4,208.85

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Solution

The fourth proportional to 8,590.11, 12,887.63 and 4,208.85 is: 6,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,590.11 : 12,887.63 = 4,208.85 : x
  2. Step 2: Convert to fraction form
    8,590.11/12,887.63 = 4,208.85/x
  3. Step 3: Cross multiply
    8,590.11x = 12,887.63 × 4,208.85
  4. Step 4: Simplify right side
    8,590.11x = 54,242,080.48
  5. Step 5: Solve for x
    x = 54,242,080.48/8,590.11
  6. Step 6: Final answer
    x = 6,314.48

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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.