Home / 11,238.79-15,510.15-6,763.96

Finding the Fourth Proportional to 11,238.79, 15,510.15 and 6,763.96

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Solution

The fourth proportional to 11,238.79, 15,510.15 and 6,763.96 is: 9,334.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,238.79 : 15,510.15 = 6,763.96 : x
  2. Step 2: Convert to fraction form
    11,238.79/15,510.15 = 6,763.96/x
  3. Step 3: Cross multiply
    11,238.79x = 15,510.15 × 6,763.96
  4. Step 4: Simplify right side
    11,238.79x = 104,910,034.19
  5. Step 5: Solve for x
    x = 104,910,034.19/11,238.79
  6. Step 6: Final answer
    x = 9,334.64

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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.