Home / 15,441.66-21,309.59-8,368.09

Finding the Fourth Proportional to 15,441.66, 21,309.59 and 8,368.09

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Solution

The fourth proportional to 15,441.66, 21,309.59 and 8,368.09 is: 11,548.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.66 : 21,309.59 = 8,368.09 : x
  2. Step 2: Convert to fraction form
    15,441.66/21,309.59 = 8,368.09/x
  3. Step 3: Cross multiply
    15,441.66x = 21,309.59 × 8,368.09
  4. Step 4: Simplify right side
    15,441.66x = 178,320,534.63
  5. Step 5: Solve for x
    x = 178,320,534.63/15,441.66
  6. Step 6: Final answer
    x = 11,548.02

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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.