Home / 12,771.04-19,157.28-4,005.76

Finding the Fourth Proportional to 12,771.04, 19,157.28 and 4,005.76

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Solution

The fourth proportional to 12,771.04, 19,157.28 and 4,005.76 is: 6,008.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.04 : 19,157.28 = 4,005.76 : x
  2. Step 2: Convert to fraction form
    12,771.04/19,157.28 = 4,005.76/x
  3. Step 3: Cross multiply
    12,771.04x = 19,157.28 × 4,005.76
  4. Step 4: Simplify right side
    12,771.04x = 76,739,465.93
  5. Step 5: Solve for x
    x = 76,739,465.93/12,771.04
  6. Step 6: Final answer
    x = 6,008.87

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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.