Home / 11,137.08-15,334.20-9,455

Finding the Fourth Proportional to 11,137.08, 15,334.20 and 9,455

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Solution

The fourth proportional to 11,137.08, 15,334.20 and 9,455 is: 13,018.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,137.08 : 15,334.20 = 9,455 : x
  2. Step 2: Convert to fraction form
    11,137.08/15,334.20 = 9,455/x
  3. Step 3: Cross multiply
    11,137.08x = 15,334.20 × 9,455
  4. Step 4: Simplify right side
    11,137.08x = 144,984,861
  5. Step 5: Solve for x
    x = 144,984,861/11,137.08
  6. Step 6: Final answer
    x = 13,018.21

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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.