Home / 15,921.04-21,964.62-9,622.48

Finding the Fourth Proportional to 15,921.04, 21,964.62 and 9,622.48

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Solution

The fourth proportional to 15,921.04, 21,964.62 and 9,622.48 is: 13,275.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,921.04 : 21,964.62 = 9,622.48 : x
  2. Step 2: Convert to fraction form
    15,921.04/21,964.62 = 9,622.48/x
  3. Step 3: Cross multiply
    15,921.04x = 21,964.62 × 9,622.48
  4. Step 4: Simplify right side
    15,921.04x = 211,354,116.66
  5. Step 5: Solve for x
    x = 211,354,116.66/15,921.04
  6. Step 6: Final answer
    x = 13,275.15

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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.