Home / 13,656.10-20,492.10-5,758.12

Finding the Fourth Proportional to 13,656.10, 20,492.10 and 5,758.12

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Solution

The fourth proportional to 13,656.10, 20,492.10 and 5,758.12 is: 8,640.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.10 : 20,492.10 = 5,758.12 : x
  2. Step 2: Convert to fraction form
    13,656.10/20,492.10 = 5,758.12/x
  3. Step 3: Cross multiply
    13,656.10x = 20,492.10 × 5,758.12
  4. Step 4: Simplify right side
    13,656.10x = 117,995,970.85
  5. Step 5: Solve for x
    x = 117,995,970.85/13,656.10
  6. Step 6: Final answer
    x = 8,640.53

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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.