Home / 10,720.84-14,795.60-6,745.36

Finding the Fourth Proportional to 10,720.84, 14,795.60 and 6,745.36

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Solution

The fourth proportional to 10,720.84, 14,795.60 and 6,745.36 is: 9,309.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,720.84 : 14,795.60 = 6,745.36 : x
  2. Step 2: Convert to fraction form
    10,720.84/14,795.60 = 6,745.36/x
  3. Step 3: Cross multiply
    10,720.84x = 14,795.60 × 6,745.36
  4. Step 4: Simplify right side
    10,720.84x = 99,801,648.42
  5. Step 5: Solve for x
    x = 99,801,648.42/10,720.84
  6. Step 6: Final answer
    x = 9,309.13

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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.