Home / 13,133.32-19,683.58-8,440.84

Finding the Fourth Proportional to 13,133.32, 19,683.58 and 8,440.84

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Solution

The fourth proportional to 13,133.32, 19,683.58 and 8,440.84 is: 12,650.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,133.32 : 19,683.58 = 8,440.84 : x
  2. Step 2: Convert to fraction form
    13,133.32/19,683.58 = 8,440.84/x
  3. Step 3: Cross multiply
    13,133.32x = 19,683.58 × 8,440.84
  4. Step 4: Simplify right side
    13,133.32x = 166,145,949.41
  5. Step 5: Solve for x
    x = 166,145,949.41/13,133.32
  6. Step 6: Final answer
    x = 12,650.72

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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.