Home / 9,555.12-13,186.86-5,306.46

Finding the Fourth Proportional to 9,555.12, 13,186.86 and 5,306.46

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Solution

The fourth proportional to 9,555.12, 13,186.86 and 5,306.46 is: 7,323.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,555.12 : 13,186.86 = 5,306.46 : x
  2. Step 2: Convert to fraction form
    9,555.12/13,186.86 = 5,306.46/x
  3. Step 3: Cross multiply
    9,555.12x = 13,186.86 × 5,306.46
  4. Step 4: Simplify right side
    9,555.12x = 69,975,545.12
  5. Step 5: Solve for x
    x = 69,975,545.12/9,555.12
  6. Step 6: Final answer
    x = 7,323.36

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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.