Home / 18,509.07-27,742.95-7,400.34

Finding the Fourth Proportional to 18,509.07, 27,742.95 and 7,400.34

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Solution

The fourth proportional to 18,509.07, 27,742.95 and 7,400.34 is: 11,092.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,509.07 : 27,742.95 = 7,400.34 : x
  2. Step 2: Convert to fraction form
    18,509.07/27,742.95 = 7,400.34/x
  3. Step 3: Cross multiply
    18,509.07x = 27,742.95 × 7,400.34
  4. Step 4: Simplify right side
    18,509.07x = 205,307,262.60
  5. Step 5: Solve for x
    x = 205,307,262.60/18,509.07
  6. Step 6: Final answer
    x = 11,092.25

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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.