Home / 15,918.37-21,964.91-9,202.70

Finding the Fourth Proportional to 15,918.37, 21,964.91 and 9,202.70

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Solution

The fourth proportional to 15,918.37, 21,964.91 and 9,202.70 is: 12,698.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,918.37 : 21,964.91 = 9,202.70 : x
  2. Step 2: Convert to fraction form
    15,918.37/21,964.91 = 9,202.70/x
  3. Step 3: Cross multiply
    15,918.37x = 21,964.91 × 9,202.70
  4. Step 4: Simplify right side
    15,918.37x = 202,136,486.16
  5. Step 5: Solve for x
    x = 202,136,486.16/15,918.37
  6. Step 6: Final answer
    x = 12,698.32

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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.