Home / 11,983.02-16,538.70-9,145.74

Finding the Fourth Proportional to 11,983.02, 16,538.70 and 9,145.74

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Solution

The fourth proportional to 11,983.02, 16,538.70 and 9,145.74 is: 12,622.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,983.02 : 16,538.70 = 9,145.74 : x
  2. Step 2: Convert to fraction form
    11,983.02/16,538.70 = 9,145.74/x
  3. Step 3: Cross multiply
    11,983.02x = 16,538.70 × 9,145.74
  4. Step 4: Simplify right side
    11,983.02x = 151,258,650.14
  5. Step 5: Solve for x
    x = 151,258,650.14/11,983.02
  6. Step 6: Final answer
    x = 12,622.75

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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.