Home / 18,878.23-28,317.21-6,407.03

Finding the Fourth Proportional to 18,878.23, 28,317.21 and 6,407.03

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Solution

The fourth proportional to 18,878.23, 28,317.21 and 6,407.03 is: 9,610.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.23 : 28,317.21 = 6,407.03 : x
  2. Step 2: Convert to fraction form
    18,878.23/28,317.21 = 6,407.03/x
  3. Step 3: Cross multiply
    18,878.23x = 28,317.21 × 6,407.03
  4. Step 4: Simplify right side
    18,878.23x = 181,429,213.99
  5. Step 5: Solve for x
    x = 181,429,213.99/18,878.23
  6. Step 6: Final answer
    x = 9,610.50

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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.