Home / 12,556.47-18,834.74-5,155.73

Finding the Fourth Proportional to 12,556.47, 18,834.74 and 5,155.73

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Solution

The fourth proportional to 12,556.47, 18,834.74 and 5,155.73 is: 7,733.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.47 : 18,834.74 = 5,155.73 : x
  2. Step 2: Convert to fraction form
    12,556.47/18,834.74 = 5,155.73/x
  3. Step 3: Cross multiply
    12,556.47x = 18,834.74 × 5,155.73
  4. Step 4: Simplify right side
    12,556.47x = 97,106,714.11
  5. Step 5: Solve for x
    x = 97,106,714.11/12,556.47
  6. Step 6: Final answer
    x = 7,733.60

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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.