Home / 11,017.88-15,217.30-7,257.86

Finding the Fourth Proportional to 11,017.88, 15,217.30 and 7,257.86

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Solution

The fourth proportional to 11,017.88, 15,217.30 and 7,257.86 is: 10,024.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,017.88 : 15,217.30 = 7,257.86 : x
  2. Step 2: Convert to fraction form
    11,017.88/15,217.30 = 7,257.86/x
  3. Step 3: Cross multiply
    11,017.88x = 15,217.30 × 7,257.86
  4. Step 4: Simplify right side
    11,017.88x = 110,445,032.98
  5. Step 5: Solve for x
    x = 110,445,032.98/11,017.88
  6. Step 6: Final answer
    x = 10,024.16

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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.