Home / 9,555.96-13,186.78-5,307.29

Finding the Fourth Proportional to 9,555.96, 13,186.78 and 5,307.29

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Solution

The fourth proportional to 9,555.96, 13,186.78 and 5,307.29 is: 7,323.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.96 : 13,186.78 = 5,307.29 : x
  2. Step 2: Convert to fraction form
    9,555.96/13,186.78 = 5,307.29/x
  3. Step 3: Cross multiply
    9,555.96x = 13,186.78 × 5,307.29
  4. Step 4: Simplify right side
    9,555.96x = 69,986,035.87
  5. Step 5: Solve for x
    x = 69,986,035.87/9,555.96
  6. Step 6: Final answer
    x = 7,323.81

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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.