Home / 12,011.22-18,007.65-4,621.86

Finding the Fourth Proportional to 12,011.22, 18,007.65 and 4,621.86

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Solution

The fourth proportional to 12,011.22, 18,007.65 and 4,621.86 is: 6,929.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,011.22 : 18,007.65 = 4,621.86 : x
  2. Step 2: Convert to fraction form
    12,011.22/18,007.65 = 4,621.86/x
  3. Step 3: Cross multiply
    12,011.22x = 18,007.65 × 4,621.86
  4. Step 4: Simplify right side
    12,011.22x = 83,228,837.23
  5. Step 5: Solve for x
    x = 83,228,837.23/12,011.22
  6. Step 6: Final answer
    x = 6,929.26

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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.