Home / 7,047.62-9,727.88-4,065.45

Finding the Fourth Proportional to 7,047.62, 9,727.88 and 4,065.45

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Solution

The fourth proportional to 7,047.62, 9,727.88 and 4,065.45 is: 5,611.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,047.62 : 9,727.88 = 4,065.45 : x
  2. Step 2: Convert to fraction form
    7,047.62/9,727.88 = 4,065.45/x
  3. Step 3: Cross multiply
    7,047.62x = 9,727.88 × 4,065.45
  4. Step 4: Simplify right side
    7,047.62x = 39,548,209.75
  5. Step 5: Solve for x
    x = 39,548,209.75/7,047.62
  6. Step 6: Final answer
    x = 5,611.57

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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.