Home / 13,216.22-18,237.10-7,910.92

Finding the Fourth Proportional to 13,216.22, 18,237.10 and 7,910.92

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Solution

The fourth proportional to 13,216.22, 18,237.10 and 7,910.92 is: 10,916.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,216.22 : 18,237.10 = 7,910.92 : x
  2. Step 2: Convert to fraction form
    13,216.22/18,237.10 = 7,910.92/x
  3. Step 3: Cross multiply
    13,216.22x = 18,237.10 × 7,910.92
  4. Step 4: Simplify right side
    13,216.22x = 144,272,108.39
  5. Step 5: Solve for x
    x = 144,272,108.39/13,216.22
  6. Step 6: Final answer
    x = 10,916.30

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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.