Home / 13,575.72-18,733.94-7,910.76

Finding the Fourth Proportional to 13,575.72, 18,733.94 and 7,910.76

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Solution

The fourth proportional to 13,575.72, 18,733.94 and 7,910.76 is: 10,916.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.72 : 18,733.94 = 7,910.76 : x
  2. Step 2: Convert to fraction form
    13,575.72/18,733.94 = 7,910.76/x
  3. Step 3: Cross multiply
    13,575.72x = 18,733.94 × 7,910.76
  4. Step 4: Simplify right side
    13,575.72x = 148,199,703.19
  5. Step 5: Solve for x
    x = 148,199,703.19/13,575.72
  6. Step 6: Final answer
    x = 10,916.53

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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.