Home / 13,338.60-20,008.12-4,579.66

Finding the Fourth Proportional to 13,338.60, 20,008.12 and 4,579.66

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Solution

The fourth proportional to 13,338.60, 20,008.12 and 4,579.66 is: 6,869.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.60 : 20,008.12 = 4,579.66 : x
  2. Step 2: Convert to fraction form
    13,338.60/20,008.12 = 4,579.66/x
  3. Step 3: Cross multiply
    13,338.60x = 20,008.12 × 4,579.66
  4. Step 4: Simplify right side
    13,338.60x = 91,630,386.84
  5. Step 5: Solve for x
    x = 91,630,386.84/13,338.60
  6. Step 6: Final answer
    x = 6,869.57

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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.