Home / 12,245.04-16,855.20-10,670.40

Finding the Fourth Proportional to 12,245.04, 16,855.20 and 10,670.40

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Solution

The fourth proportional to 12,245.04, 16,855.20 and 10,670.40 is: 14,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,245.04 : 16,855.20 = 10,670.40 : x
  2. Step 2: Convert to fraction form
    12,245.04/16,855.20 = 10,670.40/x
  3. Step 3: Cross multiply
    12,245.04x = 16,855.20 × 10,670.40
  4. Step 4: Simplify right side
    12,245.04x = 179,851,726.08
  5. Step 5: Solve for x
    x = 179,851,726.08/12,245.04
  6. Step 6: Final answer
    x = 14,687.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.