Home / 9,313.28-13,976.76-5,156.80

Finding the Fourth Proportional to 9,313.28, 13,976.76 and 5,156.80

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Solution

The fourth proportional to 9,313.28, 13,976.76 and 5,156.80 is: 7,738.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,313.28 : 13,976.76 = 5,156.80 : x
  2. Step 2: Convert to fraction form
    9,313.28/13,976.76 = 5,156.80/x
  3. Step 3: Cross multiply
    9,313.28x = 13,976.76 × 5,156.80
  4. Step 4: Simplify right side
    9,313.28x = 72,075,355.97
  5. Step 5: Solve for x
    x = 72,075,355.97/9,313.28
  6. Step 6: Final answer
    x = 7,738.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.