Home / 9,415.05-12,992.25-5,435.92

Finding the Fourth Proportional to 9,415.05, 12,992.25 and 5,435.92

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Solution

The fourth proportional to 9,415.05, 12,992.25 and 5,435.92 is: 7,501.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,415.05 : 12,992.25 = 5,435.92 : x
  2. Step 2: Convert to fraction form
    9,415.05/12,992.25 = 5,435.92/x
  3. Step 3: Cross multiply
    9,415.05x = 12,992.25 × 5,435.92
  4. Step 4: Simplify right side
    9,415.05x = 70,624,831.62
  5. Step 5: Solve for x
    x = 70,624,831.62/9,415.05
  6. Step 6: Final answer
    x = 7,501.27

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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.