Home / 13,157.16-19,735.45-4,272.48

Finding the Fourth Proportional to 13,157.16, 19,735.45 and 4,272.48

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Solution

The fourth proportional to 13,157.16, 19,735.45 and 4,272.48 is: 6,408.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,157.16 : 19,735.45 = 4,272.48 : x
  2. Step 2: Convert to fraction form
    13,157.16/19,735.45 = 4,272.48/x
  3. Step 3: Cross multiply
    13,157.16x = 19,735.45 × 4,272.48
  4. Step 4: Simplify right side
    13,157.16x = 84,319,315.42
  5. Step 5: Solve for x
    x = 84,319,315.42/13,157.16
  6. Step 6: Final answer
    x = 6,408.63

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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.