Home / 8,570.08-12,855.20-2,646.88

Finding the Fourth Proportional to 8,570.08, 12,855.20 and 2,646.88

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Solution

The fourth proportional to 8,570.08, 12,855.20 and 2,646.88 is: 3,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,570.08 : 12,855.20 = 2,646.88 : x
  2. Step 2: Convert to fraction form
    8,570.08/12,855.20 = 2,646.88/x
  3. Step 3: Cross multiply
    8,570.08x = 12,855.20 × 2,646.88
  4. Step 4: Simplify right side
    8,570.08x = 34,026,171.78
  5. Step 5: Solve for x
    x = 34,026,171.78/8,570.08
  6. Step 6: Final answer
    x = 3,970.34

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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.