Home / 11,256.96-15,521.92-9,157.12

Finding the Fourth Proportional to 11,256.96, 15,521.92 and 9,157.12

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Solution

The fourth proportional to 11,256.96, 15,521.92 and 9,157.12 is: 12,626.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,256.96 : 15,521.92 = 9,157.12 : x
  2. Step 2: Convert to fraction form
    11,256.96/15,521.92 = 9,157.12/x
  3. Step 3: Cross multiply
    11,256.96x = 15,521.92 × 9,157.12
  4. Step 4: Simplify right side
    11,256.96x = 142,136,084.07
  5. Step 5: Solve for x
    x = 142,136,084.07/11,256.96
  6. Step 6: Final answer
    x = 12,626.51

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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.