Home / 13,558.50-20,329.97-7,225.59

Finding the Fourth Proportional to 13,558.50, 20,329.97 and 7,225.59

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Solution

The fourth proportional to 13,558.50, 20,329.97 and 7,225.59 is: 10,834.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.50 : 20,329.97 = 7,225.59 : x
  2. Step 2: Convert to fraction form
    13,558.50/20,329.97 = 7,225.59/x
  3. Step 3: Cross multiply
    13,558.50x = 20,329.97 × 7,225.59
  4. Step 4: Simplify right side
    13,558.50x = 146,895,934.47
  5. Step 5: Solve for x
    x = 146,895,934.47/13,558.50
  6. Step 6: Final answer
    x = 10,834.23

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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.