Home / 9,769.66-13,482.38-5,790.12

Finding the Fourth Proportional to 9,769.66, 13,482.38 and 5,790.12

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Solution

The fourth proportional to 9,769.66, 13,482.38 and 5,790.12 is: 7,990.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,769.66 : 13,482.38 = 5,790.12 : x
  2. Step 2: Convert to fraction form
    9,769.66/13,482.38 = 5,790.12/x
  3. Step 3: Cross multiply
    9,769.66x = 13,482.38 × 5,790.12
  4. Step 4: Simplify right side
    9,769.66x = 78,064,598.09
  5. Step 5: Solve for x
    x = 78,064,598.09/9,769.66
  6. Step 6: Final answer
    x = 7,990.51

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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.