Home / 15,940.04-21,996.36-8,865.08

Finding the Fourth Proportional to 15,940.04, 21,996.36 and 8,865.08

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Solution

The fourth proportional to 15,940.04, 21,996.36 and 8,865.08 is: 12,233.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,940.04 : 21,996.36 = 8,865.08 : x
  2. Step 2: Convert to fraction form
    15,940.04/21,996.36 = 8,865.08/x
  3. Step 3: Cross multiply
    15,940.04x = 21,996.36 × 8,865.08
  4. Step 4: Simplify right side
    15,940.04x = 194,999,491.11
  5. Step 5: Solve for x
    x = 194,999,491.11/15,940.04
  6. Step 6: Final answer
    x = 12,233.31

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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.