Home / 16,775.70-23,153.81-12,789.69

Finding the Fourth Proportional to 16,775.70, 23,153.81 and 12,789.69

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Solution

The fourth proportional to 16,775.70, 23,153.81 and 12,789.69 is: 17,652.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,775.70 : 23,153.81 = 12,789.69 : x
  2. Step 2: Convert to fraction form
    16,775.70/23,153.81 = 12,789.69/x
  3. Step 3: Cross multiply
    16,775.70x = 23,153.81 × 12,789.69
  4. Step 4: Simplify right side
    16,775.70x = 296,130,052.22
  5. Step 5: Solve for x
    x = 296,130,052.22/16,775.70
  6. Step 6: Final answer
    x = 17,652.32

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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.