Home / 18,484.71-27,726.64-5,157.35

Finding the Fourth Proportional to 18,484.71, 27,726.64 and 5,157.35

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Solution

The fourth proportional to 18,484.71, 27,726.64 and 5,157.35 is: 7,735.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,484.71 : 27,726.64 = 5,157.35 : x
  2. Step 2: Convert to fraction form
    18,484.71/27,726.64 = 5,157.35/x
  3. Step 3: Cross multiply
    18,484.71x = 27,726.64 × 5,157.35
  4. Step 4: Simplify right side
    18,484.71x = 142,996,056.12
  5. Step 5: Solve for x
    x = 142,996,056.12/18,484.71
  6. Step 6: Final answer
    x = 7,735.91

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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.