Home / 12,184.32-16,815.40-6,880.40

Finding the Fourth Proportional to 12,184.32, 16,815.40 and 6,880.40

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Solution

The fourth proportional to 12,184.32, 16,815.40 and 6,880.40 is: 9,495.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,184.32 : 16,815.40 = 6,880.40 : x
  2. Step 2: Convert to fraction form
    12,184.32/16,815.40 = 6,880.40/x
  3. Step 3: Cross multiply
    12,184.32x = 16,815.40 × 6,880.40
  4. Step 4: Simplify right side
    12,184.32x = 115,696,678.16
  5. Step 5: Solve for x
    x = 115,696,678.16/12,184.32
  6. Step 6: Final answer
    x = 9,495.54

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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.