Home / 7,170.18-10,745.37-6,389.34

Finding the Fourth Proportional to 7,170.18, 10,745.37 and 6,389.34

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Solution

The fourth proportional to 7,170.18, 10,745.37 and 6,389.34 is: 9,575.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,170.18 : 10,745.37 = 6,389.34 : x
  2. Step 2: Convert to fraction form
    7,170.18/10,745.37 = 6,389.34/x
  3. Step 3: Cross multiply
    7,170.18x = 10,745.37 × 6,389.34
  4. Step 4: Simplify right side
    7,170.18x = 68,655,822.36
  5. Step 5: Solve for x
    x = 68,655,822.36/7,170.18
  6. Step 6: Final answer
    x = 9,575.19

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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.