Home / 12,570.63-18,857.98-4,251.15

Finding the Fourth Proportional to 12,570.63, 18,857.98 and 4,251.15

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Solution

The fourth proportional to 12,570.63, 18,857.98 and 4,251.15 is: 6,377.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.63 : 18,857.98 = 4,251.15 : x
  2. Step 2: Convert to fraction form
    12,570.63/18,857.98 = 4,251.15/x
  3. Step 3: Cross multiply
    12,570.63x = 18,857.98 × 4,251.15
  4. Step 4: Simplify right side
    12,570.63x = 80,168,106.99
  5. Step 5: Solve for x
    x = 80,168,106.99/12,570.63
  6. Step 6: Final answer
    x = 6,377.42

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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.