Home / 13,650.81-20,476.20-4,291.65

Finding the Fourth Proportional to 13,650.81, 20,476.20 and 4,291.65

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Solution

The fourth proportional to 13,650.81, 20,476.20 and 4,291.65 is: 6,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,650.81 : 20,476.20 = 4,291.65 : x
  2. Step 2: Convert to fraction form
    13,650.81/20,476.20 = 4,291.65/x
  3. Step 3: Cross multiply
    13,650.81x = 20,476.20 × 4,291.65
  4. Step 4: Simplify right side
    13,650.81x = 87,876,599.11
  5. Step 5: Solve for x
    x = 87,876,599.11/13,650.81
  6. Step 6: Final answer
    x = 6,437.46

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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.