Home / 13,225.40-18,251.90-8,741.30

Finding the Fourth Proportional to 13,225.40, 18,251.90 and 8,741.30

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Solution

The fourth proportional to 13,225.40, 18,251.90 and 8,741.30 is: 12,063.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,225.40 : 18,251.90 = 8,741.30 : x
  2. Step 2: Convert to fraction form
    13,225.40/18,251.90 = 8,741.30/x
  3. Step 3: Cross multiply
    13,225.40x = 18,251.90 × 8,741.30
  4. Step 4: Simplify right side
    13,225.40x = 159,545,333.47
  5. Step 5: Solve for x
    x = 159,545,333.47/13,225.40
  6. Step 6: Final answer
    x = 12,063.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.