Home / 12,175.04-16,800.78-6,870.32

Finding the Fourth Proportional to 12,175.04, 16,800.78 and 6,870.32

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Solution

The fourth proportional to 12,175.04, 16,800.78 and 6,870.32 is: 9,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.04 : 16,800.78 = 6,870.32 : x
  2. Step 2: Convert to fraction form
    12,175.04/16,800.78 = 6,870.32/x
  3. Step 3: Cross multiply
    12,175.04x = 16,800.78 × 6,870.32
  4. Step 4: Simplify right side
    12,175.04x = 115,426,734.85
  5. Step 5: Solve for x
    x = 115,426,734.85/12,175.04
  6. Step 6: Final answer
    x = 9,480.60

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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.