Home / 13,220.91-19,827.32-4,453.47

Finding the Fourth Proportional to 13,220.91, 19,827.32 and 4,453.47

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Solution

The fourth proportional to 13,220.91, 19,827.32 and 4,453.47 is: 6,678.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.91 : 19,827.32 = 4,453.47 : x
  2. Step 2: Convert to fraction form
    13,220.91/19,827.32 = 4,453.47/x
  3. Step 3: Cross multiply
    13,220.91x = 19,827.32 × 4,453.47
  4. Step 4: Simplify right side
    13,220.91x = 88,300,352.53
  5. Step 5: Solve for x
    x = 88,300,352.53/13,220.91
  6. Step 6: Final answer
    x = 6,678.84

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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.