Home / 9,782.05-13,499.23-5,305.80

Finding the Fourth Proportional to 9,782.05, 13,499.23 and 5,305.80

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Solution

The fourth proportional to 9,782.05, 13,499.23 and 5,305.80 is: 7,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,782.05 : 13,499.23 = 5,305.80 : x
  2. Step 2: Convert to fraction form
    9,782.05/13,499.23 = 5,305.80/x
  3. Step 3: Cross multiply
    9,782.05x = 13,499.23 × 5,305.80
  4. Step 4: Simplify right side
    9,782.05x = 71,624,214.53
  5. Step 5: Solve for x
    x = 71,624,214.53/9,782.05
  6. Step 6: Final answer
    x = 7,322.00

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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.