Home / 12,148.31-18,230.67-4,751.84

Finding the Fourth Proportional to 12,148.31, 18,230.67 and 4,751.84

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Solution

The fourth proportional to 12,148.31, 18,230.67 and 4,751.84 is: 7,130.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,148.31 : 18,230.67 = 4,751.84 : x
  2. Step 2: Convert to fraction form
    12,148.31/18,230.67 = 4,751.84/x
  3. Step 3: Cross multiply
    12,148.31x = 18,230.67 × 4,751.84
  4. Step 4: Simplify right side
    12,148.31x = 86,629,272.51
  5. Step 5: Solve for x
    x = 86,629,272.51/12,148.31
  6. Step 6: Final answer
    x = 7,130.97

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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.