Home / 14,187.04-19,578.96-8,216.80

Finding the Fourth Proportional to 14,187.04, 19,578.96 and 8,216.80

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Solution

The fourth proportional to 14,187.04, 19,578.96 and 8,216.80 is: 11,339.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,187.04 : 19,578.96 = 8,216.80 : x
  2. Step 2: Convert to fraction form
    14,187.04/19,578.96 = 8,216.80/x
  3. Step 3: Cross multiply
    14,187.04x = 19,578.96 × 8,216.80
  4. Step 4: Simplify right side
    14,187.04x = 160,876,398.53
  5. Step 5: Solve for x
    x = 160,876,398.53/14,187.04
  6. Step 6: Final answer
    x = 11,339.67

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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.