Home / 8,412.98-12,621.33-2,570.05

Finding the Fourth Proportional to 8,412.98, 12,621.33 and 2,570.05

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Solution

The fourth proportional to 8,412.98, 12,621.33 and 2,570.05 is: 3,855.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,412.98 : 12,621.33 = 2,570.05 : x
  2. Step 2: Convert to fraction form
    8,412.98/12,621.33 = 2,570.05/x
  3. Step 3: Cross multiply
    8,412.98x = 12,621.33 × 2,570.05
  4. Step 4: Simplify right side
    8,412.98x = 32,437,417.61
  5. Step 5: Solve for x
    x = 32,437,417.61/8,412.98
  6. Step 6: Final answer
    x = 3,855.64

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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.