Home / 12,903.48-19,356.42-3,543.60

Finding the Fourth Proportional to 12,903.48, 19,356.42 and 3,543.60

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Solution

The fourth proportional to 12,903.48, 19,356.42 and 3,543.60 is: 5,315.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,903.48 : 19,356.42 = 3,543.60 : x
  2. Step 2: Convert to fraction form
    12,903.48/19,356.42 = 3,543.60/x
  3. Step 3: Cross multiply
    12,903.48x = 19,356.42 × 3,543.60
  4. Step 4: Simplify right side
    12,903.48x = 68,591,409.91
  5. Step 5: Solve for x
    x = 68,591,409.91/12,903.48
  6. Step 6: Final answer
    x = 5,315.73

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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.