Home / 10,621.35-15,908.85-9,693.09

Finding the Fourth Proportional to 10,621.35, 15,908.85 and 9,693.09

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Solution

The fourth proportional to 10,621.35, 15,908.85 and 9,693.09 is: 14,518.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.35 : 15,908.85 = 9,693.09 : x
  2. Step 2: Convert to fraction form
    10,621.35/15,908.85 = 9,693.09/x
  3. Step 3: Cross multiply
    10,621.35x = 15,908.85 × 9,693.09
  4. Step 4: Simplify right side
    10,621.35x = 154,205,914.85
  5. Step 5: Solve for x
    x = 154,205,914.85/10,621.35
  6. Step 6: Final answer
    x = 14,518.49

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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.