Home / 12,556.35-18,837.63-8,865.81

Finding the Fourth Proportional to 12,556.35, 18,837.63 and 8,865.81

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Solution

The fourth proportional to 12,556.35, 18,837.63 and 8,865.81 is: 13,300.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.35 : 18,837.63 = 8,865.81 : x
  2. Step 2: Convert to fraction form
    12,556.35/18,837.63 = 8,865.81/x
  3. Step 3: Cross multiply
    12,556.35x = 18,837.63 × 8,865.81
  4. Step 4: Simplify right side
    12,556.35x = 167,010,848.43
  5. Step 5: Solve for x
    x = 167,010,848.43/12,556.35
  6. Step 6: Final answer
    x = 13,300.91

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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.