Home / 13,256.78-19,866.54-10,471.22

Finding the Fourth Proportional to 13,256.78, 19,866.54 and 10,471.22

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Solution

The fourth proportional to 13,256.78, 19,866.54 and 10,471.22 is: 15,692.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.78 : 19,866.54 = 10,471.22 : x
  2. Step 2: Convert to fraction form
    13,256.78/19,866.54 = 10,471.22/x
  3. Step 3: Cross multiply
    13,256.78x = 19,866.54 × 10,471.22
  4. Step 4: Simplify right side
    13,256.78x = 208,026,910.98
  5. Step 5: Solve for x
    x = 208,026,910.98/13,256.78
  6. Step 6: Final answer
    x = 15,692.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.