Home / 12,090.84-18,125.31-4,297.83

Finding the Fourth Proportional to 12,090.84, 18,125.31 and 4,297.83

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Solution

The fourth proportional to 12,090.84, 18,125.31 and 4,297.83 is: 6,442.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,090.84 : 18,125.31 = 4,297.83 : x
  2. Step 2: Convert to fraction form
    12,090.84/18,125.31 = 4,297.83/x
  3. Step 3: Cross multiply
    12,090.84x = 18,125.31 × 4,297.83
  4. Step 4: Simplify right side
    12,090.84x = 77,899,501.08
  5. Step 5: Solve for x
    x = 77,899,501.08/12,090.84
  6. Step 6: Final answer
    x = 6,442.85

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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.