Home / 18,557.20-27,828.89-7,460.15

Finding the Fourth Proportional to 18,557.20, 27,828.89 and 7,460.15

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Solution

The fourth proportional to 18,557.20, 27,828.89 and 7,460.15 is: 11,187.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,557.20 : 27,828.89 = 7,460.15 : x
  2. Step 2: Convert to fraction form
    18,557.20/27,828.89 = 7,460.15/x
  3. Step 3: Cross multiply
    18,557.20x = 27,828.89 × 7,460.15
  4. Step 4: Simplify right side
    18,557.20x = 207,607,656.43
  5. Step 5: Solve for x
    x = 207,607,656.43/18,557.20
  6. Step 6: Final answer
    x = 11,187.45

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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.