Home / 9,690.54-13,372.29-5,915.67

Finding the Fourth Proportional to 9,690.54, 13,372.29 and 5,915.67

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Solution

The fourth proportional to 9,690.54, 13,372.29 and 5,915.67 is: 8,163.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,690.54 : 13,372.29 = 5,915.67 : x
  2. Step 2: Convert to fraction form
    9,690.54/13,372.29 = 5,915.67/x
  3. Step 3: Cross multiply
    9,690.54x = 13,372.29 × 5,915.67
  4. Step 4: Simplify right side
    9,690.54x = 79,106,004.64
  5. Step 5: Solve for x
    x = 79,106,004.64/9,690.54
  6. Step 6: Final answer
    x = 8,163.22

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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.