Home / 19,336.32-26,688.96-11,880

Finding the Fourth Proportional to 19,336.32, 26,688.96 and 11,880

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Solution

The fourth proportional to 19,336.32, 26,688.96 and 11,880 is: 16,397.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,336.32 : 26,688.96 = 11,880 : x
  2. Step 2: Convert to fraction form
    19,336.32/26,688.96 = 11,880/x
  3. Step 3: Cross multiply
    19,336.32x = 26,688.96 × 11,880
  4. Step 4: Simplify right side
    19,336.32x = 317,064,844.80
  5. Step 5: Solve for x
    x = 317,064,844.80/19,336.32
  6. Step 6: Final answer
    x = 16,397.37

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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.