Home / 13,018.90-17,910.64-11,498.94

Finding the Fourth Proportional to 13,018.90, 17,910.64 and 11,498.94

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Solution

The fourth proportional to 13,018.90, 17,910.64 and 11,498.94 is: 15,819.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,018.90 : 17,910.64 = 11,498.94 : x
  2. Step 2: Convert to fraction form
    13,018.90/17,910.64 = 11,498.94/x
  3. Step 3: Cross multiply
    13,018.90x = 17,910.64 × 11,498.94
  4. Step 4: Simplify right side
    13,018.90x = 205,953,374.72
  5. Step 5: Solve for x
    x = 205,953,374.72/13,018.90
  6. Step 6: Final answer
    x = 15,819.57

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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.