Home / 18,214.56-27,328.73-7,129.17

Finding the Fourth Proportional to 18,214.56, 27,328.73 and 7,129.17

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Solution

The fourth proportional to 18,214.56, 27,328.73 and 7,129.17 is: 10,696.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,214.56 : 27,328.73 = 7,129.17 : x
  2. Step 2: Convert to fraction form
    18,214.56/27,328.73 = 7,129.17/x
  3. Step 3: Cross multiply
    18,214.56x = 27,328.73 × 7,129.17
  4. Step 4: Simplify right side
    18,214.56x = 194,831,126.41
  5. Step 5: Solve for x
    x = 194,831,126.41/18,214.56
  6. Step 6: Final answer
    x = 10,696.45

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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.