Home / 18,378.14-27,563.91-4,869.40

Finding the Fourth Proportional to 18,378.14, 27,563.91 and 4,869.40

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Solution

The fourth proportional to 18,378.14, 27,563.91 and 4,869.40 is: 7,303.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,378.14 : 27,563.91 = 4,869.40 : x
  2. Step 2: Convert to fraction form
    18,378.14/27,563.91 = 4,869.40/x
  3. Step 3: Cross multiply
    18,378.14x = 27,563.91 × 4,869.40
  4. Step 4: Simplify right side
    18,378.14x = 134,219,703.35
  5. Step 5: Solve for x
    x = 134,219,703.35/18,378.14
  6. Step 6: Final answer
    x = 7,303.23

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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.