Home / 19,172.02-28,761.66-7,484.50

Finding the Fourth Proportional to 19,172.02, 28,761.66 and 7,484.50

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Solution

The fourth proportional to 19,172.02, 28,761.66 and 7,484.50 is: 11,228.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,172.02 : 28,761.66 = 7,484.50 : x
  2. Step 2: Convert to fraction form
    19,172.02/28,761.66 = 7,484.50/x
  3. Step 3: Cross multiply
    19,172.02x = 28,761.66 × 7,484.50
  4. Step 4: Simplify right side
    19,172.02x = 215,266,644.27
  5. Step 5: Solve for x
    x = 215,266,644.27/19,172.02
  6. Step 6: Final answer
    x = 11,228.17

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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.