Home / 18,886.77-28,331.75-5,739.26

Finding the Fourth Proportional to 18,886.77, 28,331.75 and 5,739.26

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Solution

The fourth proportional to 18,886.77, 28,331.75 and 5,739.26 is: 8,609.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,886.77 : 28,331.75 = 5,739.26 : x
  2. Step 2: Convert to fraction form
    18,886.77/28,331.75 = 5,739.26/x
  3. Step 3: Cross multiply
    18,886.77x = 28,331.75 × 5,739.26
  4. Step 4: Simplify right side
    18,886.77x = 162,603,279.51
  5. Step 5: Solve for x
    x = 162,603,279.51/18,886.77
  6. Step 6: Final answer
    x = 8,609.37

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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.