Home / 11,229.28-15,492.42-6,749.58

Finding the Fourth Proportional to 11,229.28, 15,492.42 and 6,749.58

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Solution

The fourth proportional to 11,229.28, 15,492.42 and 6,749.58 is: 9,312.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,229.28 : 15,492.42 = 6,749.58 : x
  2. Step 2: Convert to fraction form
    11,229.28/15,492.42 = 6,749.58/x
  3. Step 3: Cross multiply
    11,229.28x = 15,492.42 × 6,749.58
  4. Step 4: Simplify right side
    11,229.28x = 104,567,328.18
  5. Step 5: Solve for x
    x = 104,567,328.18/11,229.28
  6. Step 6: Final answer
    x = 9,312.02

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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.