Home / 18,466.16-27,667.80-12,530.28

Finding the Fourth Proportional to 18,466.16, 27,667.80 and 12,530.28

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Solution

The fourth proportional to 18,466.16, 27,667.80 and 12,530.28 is: 18,774.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,466.16 : 27,667.80 = 12,530.28 : x
  2. Step 2: Convert to fraction form
    18,466.16/27,667.80 = 12,530.28/x
  3. Step 3: Cross multiply
    18,466.16x = 27,667.80 × 12,530.28
  4. Step 4: Simplify right side
    18,466.16x = 346,685,280.98
  5. Step 5: Solve for x
    x = 346,685,280.98/18,466.16
  6. Step 6: Final answer
    x = 18,774.09

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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.