Home / 19,270.14-28,878.05-9,127.76

Finding the Fourth Proportional to 19,270.14, 28,878.05 and 9,127.76

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Solution

The fourth proportional to 19,270.14, 28,878.05 and 9,127.76 is: 13,678.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,270.14 : 28,878.05 = 9,127.76 : x
  2. Step 2: Convert to fraction form
    19,270.14/28,878.05 = 9,127.76/x
  3. Step 3: Cross multiply
    19,270.14x = 28,878.05 × 9,127.76
  4. Step 4: Simplify right side
    19,270.14x = 263,591,719.64
  5. Step 5: Solve for x
    x = 263,591,719.64/19,270.14
  6. Step 6: Final answer
    x = 13,678.77

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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.