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Finding the Fourth Proportional to 18,603.39, 27,905.93 and 5,277.34

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Solution

The fourth proportional to 18,603.39, 27,905.93 and 5,277.34 is: 7,916.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,603.39 : 27,905.93 = 5,277.34 : x
  2. Step 2: Convert to fraction form
    18,603.39/27,905.93 = 5,277.34/x
  3. Step 3: Cross multiply
    18,603.39x = 27,905.93 × 5,277.34
  4. Step 4: Simplify right side
    18,603.39x = 147,268,914.71
  5. Step 5: Solve for x
    x = 147,268,914.71/18,603.39
  6. Step 6: Final answer
    x = 7,916.24

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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.