Home / 13,452.47-20,181.95-4,218.47

Finding the Fourth Proportional to 13,452.47, 20,181.95 and 4,218.47

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Solution

The fourth proportional to 13,452.47, 20,181.95 and 4,218.47 is: 6,328.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,452.47 : 20,181.95 = 4,218.47 : x
  2. Step 2: Convert to fraction form
    13,452.47/20,181.95 = 4,218.47/x
  3. Step 3: Cross multiply
    13,452.47x = 20,181.95 × 4,218.47
  4. Step 4: Simplify right side
    13,452.47x = 85,136,828.61
  5. Step 5: Solve for x
    x = 85,136,828.61/13,452.47
  6. Step 6: Final answer
    x = 6,328.72

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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.