Home / 15,467.95-21,345.77-8,394.37

Finding the Fourth Proportional to 15,467.95, 21,345.77 and 8,394.37

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Solution

The fourth proportional to 15,467.95, 21,345.77 and 8,394.37 is: 11,584.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.95 : 21,345.77 = 8,394.37 : x
  2. Step 2: Convert to fraction form
    15,467.95/21,345.77 = 8,394.37/x
  3. Step 3: Cross multiply
    15,467.95x = 21,345.77 × 8,394.37
  4. Step 4: Simplify right side
    15,467.95x = 179,184,249.34
  5. Step 5: Solve for x
    x = 179,184,249.34/15,467.95
  6. Step 6: Final answer
    x = 11,584.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.