Home / 18,686.63-28,029.87-6,207.59

Finding the Fourth Proportional to 18,686.63, 28,029.87 and 6,207.59

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Solution

The fourth proportional to 18,686.63, 28,029.87 and 6,207.59 is: 9,311.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,686.63 : 28,029.87 = 6,207.59 : x
  2. Step 2: Convert to fraction form
    18,686.63/28,029.87 = 6,207.59/x
  3. Step 3: Cross multiply
    18,686.63x = 28,029.87 × 6,207.59
  4. Step 4: Simplify right side
    18,686.63x = 173,997,940.71
  5. Step 5: Solve for x
    x = 173,997,940.71/18,686.63
  6. Step 6: Final answer
    x = 9,311.36

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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.