Home / 18,665.48-27,999.24-7,570.52

Finding the Fourth Proportional to 18,665.48, 27,999.24 and 7,570.52

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Solution

The fourth proportional to 18,665.48, 27,999.24 and 7,570.52 is: 11,356.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,665.48 : 27,999.24 = 7,570.52 : x
  2. Step 2: Convert to fraction form
    18,665.48/27,999.24 = 7,570.52/x
  3. Step 3: Cross multiply
    18,665.48x = 27,999.24 × 7,570.52
  4. Step 4: Simplify right side
    18,665.48x = 211,968,806.40
  5. Step 5: Solve for x
    x = 211,968,806.40/18,665.48
  6. Step 6: Final answer
    x = 11,356.19

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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.