Home / 15,621.75-21,546.81-9,950.58

Finding the Fourth Proportional to 15,621.75, 21,546.81 and 9,950.58

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Solution

The fourth proportional to 15,621.75, 21,546.81 and 9,950.58 is: 13,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,621.75 : 21,546.81 = 9,950.58 : x
  2. Step 2: Convert to fraction form
    15,621.75/21,546.81 = 9,950.58/x
  3. Step 3: Cross multiply
    15,621.75x = 21,546.81 × 9,950.58
  4. Step 4: Simplify right side
    15,621.75x = 214,403,256.65
  5. Step 5: Solve for x
    x = 214,403,256.65/15,621.75
  6. Step 6: Final answer
    x = 13,724.66

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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.