Home / 12,167.37-18,242.61-4,772.58

Finding the Fourth Proportional to 12,167.37, 18,242.61 and 4,772.58

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Solution

The fourth proportional to 12,167.37, 18,242.61 and 4,772.58 is: 7,155.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,167.37 : 18,242.61 = 4,772.58 : x
  2. Step 2: Convert to fraction form
    12,167.37/18,242.61 = 4,772.58/x
  3. Step 3: Cross multiply
    12,167.37x = 18,242.61 × 4,772.58
  4. Step 4: Simplify right side
    12,167.37x = 87,064,315.63
  5. Step 5: Solve for x
    x = 87,064,315.63/12,167.37
  6. Step 6: Final answer
    x = 7,155.56

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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.