Home / 12,880.24-17,768.44-8,106.10

Finding the Fourth Proportional to 12,880.24, 17,768.44 and 8,106.10

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Solution

The fourth proportional to 12,880.24, 17,768.44 and 8,106.10 is: 11,182.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,880.24 : 17,768.44 = 8,106.10 : x
  2. Step 2: Convert to fraction form
    12,880.24/17,768.44 = 8,106.10/x
  3. Step 3: Cross multiply
    12,880.24x = 17,768.44 × 8,106.10
  4. Step 4: Simplify right side
    12,880.24x = 144,032,751.48
  5. Step 5: Solve for x
    x = 144,032,751.48/12,880.24
  6. Step 6: Final answer
    x = 11,182.46

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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.