Home / 15,492.20-23,212.70-13,188.20

Finding the Fourth Proportional to 15,492.20, 23,212.70 and 13,188.20

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Solution

The fourth proportional to 15,492.20, 23,212.70 and 13,188.20 is: 19,760.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,492.20 : 23,212.70 = 13,188.20 : x
  2. Step 2: Convert to fraction form
    15,492.20/23,212.70 = 13,188.20/x
  3. Step 3: Cross multiply
    15,492.20x = 23,212.70 × 13,188.20
  4. Step 4: Simplify right side
    15,492.20x = 306,133,730.14
  5. Step 5: Solve for x
    x = 306,133,730.14/15,492.20
  6. Step 6: Final answer
    x = 19,760.51

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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.