Home / 14,851.87-20,491.19-8,478.25

Finding the Fourth Proportional to 14,851.87, 20,491.19 and 8,478.25

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Solution

The fourth proportional to 14,851.87, 20,491.19 and 8,478.25 is: 11,697.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,851.87 : 20,491.19 = 8,478.25 : x
  2. Step 2: Convert to fraction form
    14,851.87/20,491.19 = 8,478.25/x
  3. Step 3: Cross multiply
    14,851.87x = 20,491.19 × 8,478.25
  4. Step 4: Simplify right side
    14,851.87x = 173,729,389.23
  5. Step 5: Solve for x
    x = 173,729,389.23/14,851.87
  6. Step 6: Final answer
    x = 11,697.48

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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.