Home / 9,415.48-12,993.66-5,436.52

Finding the Fourth Proportional to 9,415.48, 12,993.66 and 5,436.52

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Solution

The fourth proportional to 9,415.48, 12,993.66 and 5,436.52 is: 7,502.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.48 : 12,993.66 = 5,436.52 : x
  2. Step 2: Convert to fraction form
    9,415.48/12,993.66 = 5,436.52/x
  3. Step 3: Cross multiply
    9,415.48x = 12,993.66 × 5,436.52
  4. Step 4: Simplify right side
    9,415.48x = 70,640,292.46
  5. Step 5: Solve for x
    x = 70,640,292.46/9,415.48
  6. Step 6: Final answer
    x = 7,502.57

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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.