Home / 13,984.94-19,299.20-7,697.28

Finding the Fourth Proportional to 13,984.94, 19,299.20 and 7,697.28

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Solution

The fourth proportional to 13,984.94, 19,299.20 and 7,697.28 is: 10,622.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,984.94 : 19,299.20 = 7,697.28 : x
  2. Step 2: Convert to fraction form
    13,984.94/19,299.20 = 7,697.28/x
  3. Step 3: Cross multiply
    13,984.94x = 19,299.20 × 7,697.28
  4. Step 4: Simplify right side
    13,984.94x = 148,551,346.18
  5. Step 5: Solve for x
    x = 148,551,346.18/13,984.94
  6. Step 6: Final answer
    x = 10,622.24

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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.