Home / 9,521.44-13,137.48-5,329.60

Finding the Fourth Proportional to 9,521.44, 13,137.48 and 5,329.60

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Solution

The fourth proportional to 9,521.44, 13,137.48 and 5,329.60 is: 7,353.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,521.44 : 13,137.48 = 5,329.60 : x
  2. Step 2: Convert to fraction form
    9,521.44/13,137.48 = 5,329.60/x
  3. Step 3: Cross multiply
    9,521.44x = 13,137.48 × 5,329.60
  4. Step 4: Simplify right side
    9,521.44x = 70,017,513.41
  5. Step 5: Solve for x
    x = 70,017,513.41/9,521.44
  6. Step 6: Final answer
    x = 7,353.67

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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.