Home / 7,065.72-10,620.45-4,485.06

Finding the Fourth Proportional to 7,065.72, 10,620.45 and 4,485.06

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Solution

The fourth proportional to 7,065.72, 10,620.45 and 4,485.06 is: 6,741.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,065.72 : 10,620.45 = 4,485.06 : x
  2. Step 2: Convert to fraction form
    7,065.72/10,620.45 = 4,485.06/x
  3. Step 3: Cross multiply
    7,065.72x = 10,620.45 × 4,485.06
  4. Step 4: Simplify right side
    7,065.72x = 47,633,355.48
  5. Step 5: Solve for x
    x = 47,633,355.48/7,065.72
  6. Step 6: Final answer
    x = 6,741.47

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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.