Home / 13,399.16-18,492.60-8,368.52

Finding the Fourth Proportional to 13,399.16, 18,492.60 and 8,368.52

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Solution

The fourth proportional to 13,399.16, 18,492.60 and 8,368.52 is: 11,549.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,399.16 : 18,492.60 = 8,368.52 : x
  2. Step 2: Convert to fraction form
    13,399.16/18,492.60 = 8,368.52/x
  3. Step 3: Cross multiply
    13,399.16x = 18,492.60 × 8,368.52
  4. Step 4: Simplify right side
    13,399.16x = 154,755,692.95
  5. Step 5: Solve for x
    x = 154,755,692.95/13,399.16
  6. Step 6: Final answer
    x = 11,549.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.