Home / 7,655.05-11,485.44-5,212.90

Finding the Fourth Proportional to 7,655.05, 11,485.44 and 5,212.90

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Solution

The fourth proportional to 7,655.05, 11,485.44 and 5,212.90 is: 7,821.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,655.05 : 11,485.44 = 5,212.90 : x
  2. Step 2: Convert to fraction form
    7,655.05/11,485.44 = 5,212.90/x
  3. Step 3: Cross multiply
    7,655.05x = 11,485.44 × 5,212.90
  4. Step 4: Simplify right side
    7,655.05x = 59,872,421.46
  5. Step 5: Solve for x
    x = 59,872,421.46/7,655.05
  6. Step 6: Final answer
    x = 7,821.30

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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.