Home / 13,326.60-20,006.10-6,749.40

Finding the Fourth Proportional to 13,326.60, 20,006.10 and 6,749.40

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Solution

The fourth proportional to 13,326.60, 20,006.10 and 6,749.40 is: 10,132.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,326.60 : 20,006.10 = 6,749.40 : x
  2. Step 2: Convert to fraction form
    13,326.60/20,006.10 = 6,749.40/x
  3. Step 3: Cross multiply
    13,326.60x = 20,006.10 × 6,749.40
  4. Step 4: Simplify right side
    13,326.60x = 135,029,171.34
  5. Step 5: Solve for x
    x = 135,029,171.34/13,326.60
  6. Step 6: Final answer
    x = 10,132.30

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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.