Home / 11,493.90-15,861.60-6,717.18

Finding the Fourth Proportional to 11,493.90, 15,861.60 and 6,717.18

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Solution

The fourth proportional to 11,493.90, 15,861.60 and 6,717.18 is: 9,269.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,493.90 : 15,861.60 = 6,717.18 : x
  2. Step 2: Convert to fraction form
    11,493.90/15,861.60 = 6,717.18/x
  3. Step 3: Cross multiply
    11,493.90x = 15,861.60 × 6,717.18
  4. Step 4: Simplify right side
    11,493.90x = 106,545,222.29
  5. Step 5: Solve for x
    x = 106,545,222.29/11,493.90
  6. Step 6: Final answer
    x = 9,269.72

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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.