Home / 7,839.99-10,795.23-7,213.05

Finding the Fourth Proportional to 7,839.99, 10,795.23 and 7,213.05

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Solution

The fourth proportional to 7,839.99, 10,795.23 and 7,213.05 is: 9,931.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.99 : 10,795.23 = 7,213.05 : x
  2. Step 2: Convert to fraction form
    7,839.99/10,795.23 = 7,213.05/x
  3. Step 3: Cross multiply
    7,839.99x = 10,795.23 × 7,213.05
  4. Step 4: Simplify right side
    7,839.99x = 77,866,533.75
  5. Step 5: Solve for x
    x = 77,866,533.75/7,839.99
  6. Step 6: Final answer
    x = 9,931.97

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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.