Home / 12,009.38-18,014.93-4,613.83

Finding the Fourth Proportional to 12,009.38, 18,014.93 and 4,613.83

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Solution

The fourth proportional to 12,009.38, 18,014.93 and 4,613.83 is: 6,921.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,009.38 : 18,014.93 = 4,613.83 : x
  2. Step 2: Convert to fraction form
    12,009.38/18,014.93 = 4,613.83/x
  3. Step 3: Cross multiply
    12,009.38x = 18,014.93 × 4,613.83
  4. Step 4: Simplify right side
    12,009.38x = 83,117,824.48
  5. Step 5: Solve for x
    x = 83,117,824.48/12,009.38
  6. Step 6: Final answer
    x = 6,921.08

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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.