Home / 13,162.60-19,611.41-12,972.52

Finding the Fourth Proportional to 13,162.60, 19,611.41 and 12,972.52

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Solution

The fourth proportional to 13,162.60, 19,611.41 and 12,972.52 is: 19,328.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,162.60 : 19,611.41 = 12,972.52 : x
  2. Step 2: Convert to fraction form
    13,162.60/19,611.41 = 12,972.52/x
  3. Step 3: Cross multiply
    13,162.60x = 19,611.41 × 12,972.52
  4. Step 4: Simplify right side
    13,162.60x = 254,409,408.45
  5. Step 5: Solve for x
    x = 254,409,408.45/13,162.60
  6. Step 6: Final answer
    x = 19,328.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.