Home / 15,069.36-20,795.76-8,355.46

Finding the Fourth Proportional to 15,069.36, 20,795.76 and 8,355.46

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Solution

The fourth proportional to 15,069.36, 20,795.76 and 8,355.46 is: 11,530.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,069.36 : 20,795.76 = 8,355.46 : x
  2. Step 2: Convert to fraction form
    15,069.36/20,795.76 = 8,355.46/x
  3. Step 3: Cross multiply
    15,069.36x = 20,795.76 × 8,355.46
  4. Step 4: Simplify right side
    15,069.36x = 173,758,140.85
  5. Step 5: Solve for x
    x = 173,758,140.85/15,069.36
  6. Step 6: Final answer
    x = 11,530.56

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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.