Home / 15,464.34-21,340.44-8,749.68

Finding the Fourth Proportional to 15,464.34, 21,340.44 and 8,749.68

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Solution

The fourth proportional to 15,464.34, 21,340.44 and 8,749.68 is: 12,074.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,464.34 : 21,340.44 = 8,749.68 : x
  2. Step 2: Convert to fraction form
    15,464.34/21,340.44 = 8,749.68/x
  3. Step 3: Cross multiply
    15,464.34x = 21,340.44 × 8,749.68
  4. Step 4: Simplify right side
    15,464.34x = 186,722,021.06
  5. Step 5: Solve for x
    x = 186,722,021.06/15,464.34
  6. Step 6: Final answer
    x = 12,074.36

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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.