Home / 13,015.50-19,521.09-5,623.98

Finding the Fourth Proportional to 13,015.50, 19,521.09 and 5,623.98

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Solution

The fourth proportional to 13,015.50, 19,521.09 and 5,623.98 is: 8,435.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.50 : 19,521.09 = 5,623.98 : x
  2. Step 2: Convert to fraction form
    13,015.50/19,521.09 = 5,623.98/x
  3. Step 3: Cross multiply
    13,015.50x = 19,521.09 × 5,623.98
  4. Step 4: Simplify right side
    13,015.50x = 109,786,219.74
  5. Step 5: Solve for x
    x = 109,786,219.74/13,015.50
  6. Step 6: Final answer
    x = 8,435.04

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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.