Home / 13,387.65-20,059.58-8,106.66

Finding the Fourth Proportional to 13,387.65, 20,059.58 and 8,106.66

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Solution

The fourth proportional to 13,387.65, 20,059.58 and 8,106.66 is: 12,146.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.65 : 20,059.58 = 8,106.66 : x
  2. Step 2: Convert to fraction form
    13,387.65/20,059.58 = 8,106.66/x
  3. Step 3: Cross multiply
    13,387.65x = 20,059.58 × 8,106.66
  4. Step 4: Simplify right side
    13,387.65x = 162,616,154.27
  5. Step 5: Solve for x
    x = 162,616,154.27/13,387.65
  6. Step 6: Final answer
    x = 12,146.73

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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.