Home / 12,812.43-19,219.16-4,047.35

Finding the Fourth Proportional to 12,812.43, 19,219.16 and 4,047.35

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Solution

The fourth proportional to 12,812.43, 19,219.16 and 4,047.35 is: 6,071.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.43 : 19,219.16 = 4,047.35 : x
  2. Step 2: Convert to fraction form
    12,812.43/19,219.16 = 4,047.35/x
  3. Step 3: Cross multiply
    12,812.43x = 19,219.16 × 4,047.35
  4. Step 4: Simplify right side
    12,812.43x = 77,786,550.89
  5. Step 5: Solve for x
    x = 77,786,550.89/12,812.43
  6. Step 6: Final answer
    x = 6,071.18

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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.