Home / 12,556.40-18,822.60-4,656.80

Finding the Fourth Proportional to 12,556.40, 18,822.60 and 4,656.80

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Solution

The fourth proportional to 12,556.40, 18,822.60 and 4,656.80 is: 6,980.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.40 : 18,822.60 = 4,656.80 : x
  2. Step 2: Convert to fraction form
    12,556.40/18,822.60 = 4,656.80/x
  3. Step 3: Cross multiply
    12,556.40x = 18,822.60 × 4,656.80
  4. Step 4: Simplify right side
    12,556.40x = 87,653,083.68
  5. Step 5: Solve for x
    x = 87,653,083.68/12,556.40
  6. Step 6: Final answer
    x = 6,980.75

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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.