Home / 8,729.89-12,047.29-4,751.09

Finding the Fourth Proportional to 8,729.89, 12,047.29 and 4,751.09

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Solution

The fourth proportional to 8,729.89, 12,047.29 and 4,751.09 is: 6,556.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,729.89 : 12,047.29 = 4,751.09 : x
  2. Step 2: Convert to fraction form
    8,729.89/12,047.29 = 4,751.09/x
  3. Step 3: Cross multiply
    8,729.89x = 12,047.29 × 4,751.09
  4. Step 4: Simplify right side
    8,729.89x = 57,237,740.10
  5. Step 5: Solve for x
    x = 57,237,740.10/8,729.89
  6. Step 6: Final answer
    x = 6,556.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.