Home / 13,840.03-20,751.36-5,521.24

Finding the Fourth Proportional to 13,840.03, 20,751.36 and 5,521.24

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Solution

The fourth proportional to 13,840.03, 20,751.36 and 5,521.24 is: 8,278.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,840.03 : 20,751.36 = 5,521.24 : x
  2. Step 2: Convert to fraction form
    13,840.03/20,751.36 = 5,521.24/x
  3. Step 3: Cross multiply
    13,840.03x = 20,751.36 × 5,521.24
  4. Step 4: Simplify right side
    13,840.03x = 114,573,238.89
  5. Step 5: Solve for x
    x = 114,573,238.89/13,840.03
  6. Step 6: Final answer
    x = 8,278.40

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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.