Home / 13,821.50-19,073.68-7,533.88

Finding the Fourth Proportional to 13,821.50, 19,073.68 and 7,533.88

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Solution

The fourth proportional to 13,821.50, 19,073.68 and 7,533.88 is: 10,396.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.50 : 19,073.68 = 7,533.88 : x
  2. Step 2: Convert to fraction form
    13,821.50/19,073.68 = 7,533.88/x
  3. Step 3: Cross multiply
    13,821.50x = 19,073.68 × 7,533.88
  4. Step 4: Simplify right side
    13,821.50x = 143,698,749.76
  5. Step 5: Solve for x
    x = 143,698,749.76/13,821.50
  6. Step 6: Final answer
    x = 10,396.75

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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.