Home / 9,384.36-12,950.28-5,135.32

Finding the Fourth Proportional to 9,384.36, 12,950.28 and 5,135.32

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Solution

The fourth proportional to 9,384.36, 12,950.28 and 5,135.32 is: 7,086.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,384.36 : 12,950.28 = 5,135.32 : x
  2. Step 2: Convert to fraction form
    9,384.36/12,950.28 = 5,135.32/x
  3. Step 3: Cross multiply
    9,384.36x = 12,950.28 × 5,135.32
  4. Step 4: Simplify right side
    9,384.36x = 66,503,831.89
  5. Step 5: Solve for x
    x = 66,503,831.89/9,384.36
  6. Step 6: Final answer
    x = 7,086.67

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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.