Home / 18,586.19-27,881.26-5,438.63

Finding the Fourth Proportional to 18,586.19, 27,881.26 and 5,438.63

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Solution

The fourth proportional to 18,586.19, 27,881.26 and 5,438.63 is: 8,158.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,586.19 : 27,881.26 = 5,438.63 : x
  2. Step 2: Convert to fraction form
    18,586.19/27,881.26 = 5,438.63/x
  3. Step 3: Cross multiply
    18,586.19x = 27,881.26 × 5,438.63
  4. Step 4: Simplify right side
    18,586.19x = 151,635,857.07
  5. Step 5: Solve for x
    x = 151,635,857.07/18,586.19
  6. Step 6: Final answer
    x = 8,158.52

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.