Home / 19,164.18-28,741.02-12,133.60

Finding the Fourth Proportional to 19,164.18, 28,741.02 and 12,133.60

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Solution

The fourth proportional to 19,164.18, 28,741.02 and 12,133.60 is: 18,197.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,164.18 : 28,741.02 = 12,133.60 : x
  2. Step 2: Convert to fraction form
    19,164.18/28,741.02 = 12,133.60/x
  3. Step 3: Cross multiply
    19,164.18x = 28,741.02 × 12,133.60
  4. Step 4: Simplify right side
    19,164.18x = 348,732,040.27
  5. Step 5: Solve for x
    x = 348,732,040.27/19,164.18
  6. Step 6: Final answer
    x = 18,197.08

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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.