Home / 12,712.37-19,070.34-4,812.71

Finding the Fourth Proportional to 12,712.37, 19,070.34 and 4,812.71

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Solution

The fourth proportional to 12,712.37, 19,070.34 and 4,812.71 is: 7,219.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,712.37 : 19,070.34 = 4,812.71 : x
  2. Step 2: Convert to fraction form
    12,712.37/19,070.34 = 4,812.71/x
  3. Step 3: Cross multiply
    12,712.37x = 19,070.34 × 4,812.71
  4. Step 4: Simplify right side
    12,712.37x = 91,779,902.62
  5. Step 5: Solve for x
    x = 91,779,902.62/12,712.37
  6. Step 6: Final answer
    x = 7,219.73

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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.