Home / 14,013.45-21,019.41-5,247.72

Finding the Fourth Proportional to 14,013.45, 21,019.41 and 5,247.72

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Solution

The fourth proportional to 14,013.45, 21,019.41 and 5,247.72 is: 7,871.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,013.45 : 21,019.41 = 5,247.72 : x
  2. Step 2: Convert to fraction form
    14,013.45/21,019.41 = 5,247.72/x
  3. Step 3: Cross multiply
    14,013.45x = 21,019.41 × 5,247.72
  4. Step 4: Simplify right side
    14,013.45x = 110,303,978.25
  5. Step 5: Solve for x
    x = 110,303,978.25/14,013.45
  6. Step 6: Final answer
    x = 7,871.29

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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.