Home / 12,673.20-19,001.70-5,280.60

Finding the Fourth Proportional to 12,673.20, 19,001.70 and 5,280.60

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Solution

The fourth proportional to 12,673.20, 19,001.70 and 5,280.60 is: 7,917.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,673.20 : 19,001.70 = 5,280.60 : x
  2. Step 2: Convert to fraction form
    12,673.20/19,001.70 = 5,280.60/x
  3. Step 3: Cross multiply
    12,673.20x = 19,001.70 × 5,280.60
  4. Step 4: Simplify right side
    12,673.20x = 100,340,377.02
  5. Step 5: Solve for x
    x = 100,340,377.02/12,673.20
  6. Step 6: Final answer
    x = 7,917.52

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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.