Home / 9,365.77-12,923.44-5,385.43

Finding the Fourth Proportional to 9,365.77, 12,923.44 and 5,385.43

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Solution

The fourth proportional to 9,365.77, 12,923.44 and 5,385.43 is: 7,431.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.77 : 12,923.44 = 5,385.43 : x
  2. Step 2: Convert to fraction form
    9,365.77/12,923.44 = 5,385.43/x
  3. Step 3: Cross multiply
    9,365.77x = 12,923.44 × 5,385.43
  4. Step 4: Simplify right side
    9,365.77x = 69,598,281.48
  5. Step 5: Solve for x
    x = 69,598,281.48/9,365.77
  6. Step 6: Final answer
    x = 7,431.13

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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.