Home / 19,311.36-26,645.16-12,235.20

Finding the Fourth Proportional to 19,311.36, 26,645.16 and 12,235.20

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Solution

The fourth proportional to 19,311.36, 26,645.16 and 12,235.20 is: 16,881.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,311.36 : 26,645.16 = 12,235.20 : x
  2. Step 2: Convert to fraction form
    19,311.36/26,645.16 = 12,235.20/x
  3. Step 3: Cross multiply
    19,311.36x = 26,645.16 × 12,235.20
  4. Step 4: Simplify right side
    19,311.36x = 326,008,861.63
  5. Step 5: Solve for x
    x = 326,008,861.63/19,311.36
  6. Step 6: Final answer
    x = 16,881.71

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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.