Home / 12,812.90-19,217.55-4,048.70

Finding the Fourth Proportional to 12,812.90, 19,217.55 and 4,048.70

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Solution

The fourth proportional to 12,812.90, 19,217.55 and 4,048.70 is: 6,072.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,812.90 : 19,217.55 = 4,048.70 : x
  2. Step 2: Convert to fraction form
    12,812.90/19,217.55 = 4,048.70/x
  3. Step 3: Cross multiply
    12,812.90x = 19,217.55 × 4,048.70
  4. Step 4: Simplify right side
    12,812.90x = 77,806,094.69
  5. Step 5: Solve for x
    x = 77,806,094.69/12,812.90
  6. Step 6: Final answer
    x = 6,072.48

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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.