Home / 15,383.04-21,224.21-8,666.33

Finding the Fourth Proportional to 15,383.04, 21,224.21 and 8,666.33

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Solution

The fourth proportional to 15,383.04, 21,224.21 and 8,666.33 is: 11,957.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,383.04 : 21,224.21 = 8,666.33 : x
  2. Step 2: Convert to fraction form
    15,383.04/21,224.21 = 8,666.33/x
  3. Step 3: Cross multiply
    15,383.04x = 21,224.21 × 8,666.33
  4. Step 4: Simplify right side
    15,383.04x = 183,935,858.40
  5. Step 5: Solve for x
    x = 183,935,858.40/15,383.04
  6. Step 6: Final answer
    x = 11,957.06

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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.