Home / 18,283.34-25,231.47-11,213.66

Finding the Fourth Proportional to 18,283.34, 25,231.47 and 11,213.66

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Solution

The fourth proportional to 18,283.34, 25,231.47 and 11,213.66 is: 15,475.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,283.34 : 25,231.47 = 11,213.66 : x
  2. Step 2: Convert to fraction form
    18,283.34/25,231.47 = 11,213.66/x
  3. Step 3: Cross multiply
    18,283.34x = 25,231.47 × 11,213.66
  4. Step 4: Simplify right side
    18,283.34x = 282,937,125.88
  5. Step 5: Solve for x
    x = 282,937,125.88/18,283.34
  6. Step 6: Final answer
    x = 15,475.13

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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.