Home / 10,820.36-16,125.22-9,650.72

Finding the Fourth Proportional to 10,820.36, 16,125.22 and 9,650.72

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Solution

The fourth proportional to 10,820.36, 16,125.22 and 9,650.72 is: 14,382.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,820.36 : 16,125.22 = 9,650.72 : x
  2. Step 2: Convert to fraction form
    10,820.36/16,125.22 = 9,650.72/x
  3. Step 3: Cross multiply
    10,820.36x = 16,125.22 × 9,650.72
  4. Step 4: Simplify right side
    10,820.36x = 155,619,983.16
  5. Step 5: Solve for x
    x = 155,619,983.16/10,820.36
  6. Step 6: Final answer
    x = 14,382.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.