Home / 12,813.21-19,219.70-4,048.13

Finding the Fourth Proportional to 12,813.21, 19,219.70 and 4,048.13

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Solution

The fourth proportional to 12,813.21, 19,219.70 and 4,048.13 is: 6,072.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,813.21 : 19,219.70 = 4,048.13 : x
  2. Step 2: Convert to fraction form
    12,813.21/19,219.70 = 4,048.13/x
  3. Step 3: Cross multiply
    12,813.21x = 19,219.70 × 4,048.13
  4. Step 4: Simplify right side
    12,813.21x = 77,803,758.18
  5. Step 5: Solve for x
    x = 77,803,758.18/12,813.21
  6. Step 6: Final answer
    x = 6,072.15

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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.