Home / 15,112.24-20,857.37-12,590.35

Finding the Fourth Proportional to 15,112.24, 20,857.37 and 12,590.35

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Solution

The fourth proportional to 15,112.24, 20,857.37 and 12,590.35 is: 17,376.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,112.24 : 20,857.37 = 12,590.35 : x
  2. Step 2: Convert to fraction form
    15,112.24/20,857.37 = 12,590.35/x
  3. Step 3: Cross multiply
    15,112.24x = 20,857.37 × 12,590.35
  4. Step 4: Simplify right side
    15,112.24x = 262,601,525.43
  5. Step 5: Solve for x
    x = 262,601,525.43/15,112.24
  6. Step 6: Final answer
    x = 17,376.74

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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.