Home / 18,219.50-27,328.36-5,071.58

Finding the Fourth Proportional to 18,219.50, 27,328.36 and 5,071.58

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Solution

The fourth proportional to 18,219.50, 27,328.36 and 5,071.58 is: 7,607.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,219.50 : 27,328.36 = 5,071.58 : x
  2. Step 2: Convert to fraction form
    18,219.50/27,328.36 = 5,071.58/x
  3. Step 3: Cross multiply
    18,219.50x = 27,328.36 × 5,071.58
  4. Step 4: Simplify right side
    18,219.50x = 138,597,964.01
  5. Step 5: Solve for x
    x = 138,597,964.01/18,219.50
  6. Step 6: Final answer
    x = 7,607.12

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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.