Home / 13,330.38-19,995.77-4,445.56

Finding the Fourth Proportional to 13,330.38, 19,995.77 and 4,445.56

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Solution

The fourth proportional to 13,330.38, 19,995.77 and 4,445.56 is: 6,668.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,330.38 : 19,995.77 = 4,445.56 : x
  2. Step 2: Convert to fraction form
    13,330.38/19,995.77 = 4,445.56/x
  3. Step 3: Cross multiply
    13,330.38x = 19,995.77 × 4,445.56
  4. Step 4: Simplify right side
    13,330.38x = 88,892,273.07
  5. Step 5: Solve for x
    x = 88,892,273.07/13,330.38
  6. Step 6: Final answer
    x = 6,668.40

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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.