Home / 12,148.64-18,222.85-4,758.27

Finding the Fourth Proportional to 12,148.64, 18,222.85 and 4,758.27

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Solution

The fourth proportional to 12,148.64, 18,222.85 and 4,758.27 is: 7,137.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.64 : 18,222.85 = 4,758.27 : x
  2. Step 2: Convert to fraction form
    12,148.64/18,222.85 = 4,758.27/x
  3. Step 3: Cross multiply
    12,148.64x = 18,222.85 × 4,758.27
  4. Step 4: Simplify right side
    12,148.64x = 86,709,240.47
  5. Step 5: Solve for x
    x = 86,709,240.47/12,148.64
  6. Step 6: Final answer
    x = 7,137.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.