Home / 13,697.78-20,547.38-4,338.79

Finding the Fourth Proportional to 13,697.78, 20,547.38 and 4,338.79

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Solution

The fourth proportional to 13,697.78, 20,547.38 and 4,338.79 is: 6,508.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.78 : 20,547.38 = 4,338.79 : x
  2. Step 2: Convert to fraction form
    13,697.78/20,547.38 = 4,338.79/x
  3. Step 3: Cross multiply
    13,697.78x = 20,547.38 × 4,338.79
  4. Step 4: Simplify right side
    13,697.78x = 89,150,726.35
  5. Step 5: Solve for x
    x = 89,150,726.35/13,697.78
  6. Step 6: Final answer
    x = 6,508.41

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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.