Home / 13,333.10-20,011.80-11,486.30

Finding the Fourth Proportional to 13,333.10, 20,011.80 and 11,486.30

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Solution

The fourth proportional to 13,333.10, 20,011.80 and 11,486.30 is: 17,239.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.10 : 20,011.80 = 11,486.30 : x
  2. Step 2: Convert to fraction form
    13,333.10/20,011.80 = 11,486.30/x
  3. Step 3: Cross multiply
    13,333.10x = 20,011.80 × 11,486.30
  4. Step 4: Simplify right side
    13,333.10x = 229,861,538.34
  5. Step 5: Solve for x
    x = 229,861,538.34/13,333.10
  6. Step 6: Final answer
    x = 17,239.92

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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.