Home / 19,337.32-26,690.34-11,881

Finding the Fourth Proportional to 19,337.32, 26,690.34 and 11,881

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Solution

The fourth proportional to 19,337.32, 26,690.34 and 11,881 is: 16,398.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,337.32 : 26,690.34 = 11,881 : x
  2. Step 2: Convert to fraction form
    19,337.32/26,690.34 = 11,881/x
  3. Step 3: Cross multiply
    19,337.32x = 26,690.34 × 11,881
  4. Step 4: Simplify right side
    19,337.32x = 317,107,929.54
  5. Step 5: Solve for x
    x = 317,107,929.54/19,337.32
  6. Step 6: Final answer
    x = 16,398.75

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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.