Home / 18,089.86-27,130.40-4,942.30

Finding the Fourth Proportional to 18,089.86, 27,130.40 and 4,942.30

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Solution

The fourth proportional to 18,089.86, 27,130.40 and 4,942.30 is: 7,412.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,089.86 : 27,130.40 = 4,942.30 : x
  2. Step 2: Convert to fraction form
    18,089.86/27,130.40 = 4,942.30/x
  3. Step 3: Cross multiply
    18,089.86x = 27,130.40 × 4,942.30
  4. Step 4: Simplify right side
    18,089.86x = 134,086,575.92
  5. Step 5: Solve for x
    x = 134,086,575.92/18,089.86
  6. Step 6: Final answer
    x = 7,412.25

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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.