Home / 12,570.85-18,858.71-4,252.22

Finding the Fourth Proportional to 12,570.85, 18,858.71 and 4,252.22

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Solution

The fourth proportional to 12,570.85, 18,858.71 and 4,252.22 is: 6,379.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.85 : 18,858.71 = 4,252.22 : x
  2. Step 2: Convert to fraction form
    12,570.85/18,858.71 = 4,252.22/x
  3. Step 3: Cross multiply
    12,570.85x = 18,858.71 × 4,252.22
  4. Step 4: Simplify right side
    12,570.85x = 80,191,400.01
  5. Step 5: Solve for x
    x = 80,191,400.01/12,570.85
  6. Step 6: Final answer
    x = 6,379.16

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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.