Home / 12,676.91-17,485.67-8,900.28

Finding the Fourth Proportional to 12,676.91, 17,485.67 and 8,900.28

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Solution

The fourth proportional to 12,676.91, 17,485.67 and 8,900.28 is: 12,276.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,676.91 : 17,485.67 = 8,900.28 : x
  2. Step 2: Convert to fraction form
    12,676.91/17,485.67 = 8,900.28/x
  3. Step 3: Cross multiply
    12,676.91x = 17,485.67 × 8,900.28
  4. Step 4: Simplify right side
    12,676.91x = 155,627,381.24
  5. Step 5: Solve for x
    x = 155,627,381.24/12,676.91
  6. Step 6: Final answer
    x = 12,276.45

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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.