Home / 11,390.12-17,085.70-3,492.07

Finding the Fourth Proportional to 11,390.12, 17,085.70 and 3,492.07

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Solution

The fourth proportional to 11,390.12, 17,085.70 and 3,492.07 is: 5,238.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.12 : 17,085.70 = 3,492.07 : x
  2. Step 2: Convert to fraction form
    11,390.12/17,085.70 = 3,492.07/x
  3. Step 3: Cross multiply
    11,390.12x = 17,085.70 × 3,492.07
  4. Step 4: Simplify right side
    11,390.12x = 59,664,460.40
  5. Step 5: Solve for x
    x = 59,664,460.40/11,390.12
  6. Step 6: Final answer
    x = 5,238.26

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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.