Home / 13,557.42-20,328.84-6,157.89

Finding the Fourth Proportional to 13,557.42, 20,328.84 and 6,157.89

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Solution

The fourth proportional to 13,557.42, 20,328.84 and 6,157.89 is: 9,233.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557.42 : 20,328.84 = 6,157.89 : x
  2. Step 2: Convert to fraction form
    13,557.42/20,328.84 = 6,157.89/x
  3. Step 3: Cross multiply
    13,557.42x = 20,328.84 × 6,157.89
  4. Step 4: Simplify right side
    13,557.42x = 125,182,760.55
  5. Step 5: Solve for x
    x = 125,182,760.55/13,557.42
  6. Step 6: Final answer
    x = 9,233.52

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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.