Home / 18,190.02-27,280.03-12,909.36

Finding the Fourth Proportional to 18,190.02, 27,280.03 and 12,909.36

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Solution

The fourth proportional to 18,190.02, 27,280.03 and 12,909.36 is: 19,360.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,190.02 : 27,280.03 = 12,909.36 : x
  2. Step 2: Convert to fraction form
    18,190.02/27,280.03 = 12,909.36/x
  3. Step 3: Cross multiply
    18,190.02x = 27,280.03 × 12,909.36
  4. Step 4: Simplify right side
    18,190.02x = 352,167,728.08
  5. Step 5: Solve for x
    x = 352,167,728.08/18,190.02
  6. Step 6: Final answer
    x = 19,360.49

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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.