Home / 13,656.13-20,492.15-5,758.17

Finding the Fourth Proportional to 13,656.13, 20,492.15 and 5,758.17

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Solution

The fourth proportional to 13,656.13, 20,492.15 and 5,758.17 is: 8,640.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656.13 : 20,492.15 = 5,758.17 : x
  2. Step 2: Convert to fraction form
    13,656.13/20,492.15 = 5,758.17/x
  3. Step 3: Cross multiply
    13,656.13x = 20,492.15 × 5,758.17
  4. Step 4: Simplify right side
    13,656.13x = 117,997,283.37
  5. Step 5: Solve for x
    x = 117,997,283.37/13,656.13
  6. Step 6: Final answer
    x = 8,640.61

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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.