Home / 7,389.28-10,206.08-5,396.64

Finding the Fourth Proportional to 7,389.28, 10,206.08 and 5,396.64

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Solution

The fourth proportional to 7,389.28, 10,206.08 and 5,396.64 is: 7,453.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,389.28 : 10,206.08 = 5,396.64 : x
  2. Step 2: Convert to fraction form
    7,389.28/10,206.08 = 5,396.64/x
  3. Step 3: Cross multiply
    7,389.28x = 10,206.08 × 5,396.64
  4. Step 4: Simplify right side
    7,389.28x = 55,078,539.57
  5. Step 5: Solve for x
    x = 55,078,539.57/7,389.28
  6. Step 6: Final answer
    x = 7,453.84

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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.