Home / 15,070.09-20,795.23-8,355.55

Finding the Fourth Proportional to 15,070.09, 20,795.23 and 8,355.55

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Solution

The fourth proportional to 15,070.09, 20,795.23 and 8,355.55 is: 11,529.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,070.09 : 20,795.23 = 8,355.55 : x
  2. Step 2: Convert to fraction form
    15,070.09/20,795.23 = 8,355.55/x
  3. Step 3: Cross multiply
    15,070.09x = 20,795.23 × 8,355.55
  4. Step 4: Simplify right side
    15,070.09x = 173,755,584.03
  5. Step 5: Solve for x
    x = 173,755,584.03/15,070.09
  6. Step 6: Final answer
    x = 11,529.83

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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.