Home / 12,887.70-19,320.30-4,995.60

Finding the Fourth Proportional to 12,887.70, 19,320.30 and 4,995.60

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Solution

The fourth proportional to 12,887.70, 19,320.30 and 4,995.60 is: 7,489.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.70 : 19,320.30 = 4,995.60 : x
  2. Step 2: Convert to fraction form
    12,887.70/19,320.30 = 4,995.60/x
  3. Step 3: Cross multiply
    12,887.70x = 19,320.30 × 4,995.60
  4. Step 4: Simplify right side
    12,887.70x = 96,516,490.68
  5. Step 5: Solve for x
    x = 96,516,490.68/12,887.70
  6. Step 6: Final answer
    x = 7,489.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.