Home / 13,575.98-18,734.54-7,910.37

Finding the Fourth Proportional to 13,575.98, 18,734.54 and 7,910.37

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Solution

The fourth proportional to 13,575.98, 18,734.54 and 7,910.37 is: 10,916.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.98 : 18,734.54 = 7,910.37 : x
  2. Step 2: Convert to fraction form
    13,575.98/18,734.54 = 7,910.37/x
  3. Step 3: Cross multiply
    13,575.98x = 18,734.54 × 7,910.37
  4. Step 4: Simplify right side
    13,575.98x = 148,197,162.96
  5. Step 5: Solve for x
    x = 148,197,162.96/13,575.98
  6. Step 6: Final answer
    x = 10,916.13

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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.