Home / 12,290.04-16,960.86-6,985.44

Finding the Fourth Proportional to 12,290.04, 16,960.86 and 6,985.44

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Solution

The fourth proportional to 12,290.04, 16,960.86 and 6,985.44 is: 9,640.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,290.04 : 16,960.86 = 6,985.44 : x
  2. Step 2: Convert to fraction form
    12,290.04/16,960.86 = 6,985.44/x
  3. Step 3: Cross multiply
    12,290.04x = 16,960.86 × 6,985.44
  4. Step 4: Simplify right side
    12,290.04x = 118,479,069.88
  5. Step 5: Solve for x
    x = 118,479,069.88/12,290.04
  6. Step 6: Final answer
    x = 9,640.25

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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.