Home / 18,216.95-27,333.93-7,120.76

Finding the Fourth Proportional to 18,216.95, 27,333.93 and 7,120.76

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Solution

The fourth proportional to 18,216.95, 27,333.93 and 7,120.76 is: 10,684.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,216.95 : 27,333.93 = 7,120.76 : x
  2. Step 2: Convert to fraction form
    18,216.95/27,333.93 = 7,120.76/x
  3. Step 3: Cross multiply
    18,216.95x = 27,333.93 × 7,120.76
  4. Step 4: Simplify right side
    18,216.95x = 194,638,355.39
  5. Step 5: Solve for x
    x = 194,638,355.39/18,216.95
  6. Step 6: Final answer
    x = 10,684.46

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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.