Home / 13,821.32-19,073.66-7,533.70

Finding the Fourth Proportional to 13,821.32, 19,073.66 and 7,533.70

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Solution

The fourth proportional to 13,821.32, 19,073.66 and 7,533.70 is: 10,396.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,821.32 : 19,073.66 = 7,533.70 : x
  2. Step 2: Convert to fraction form
    13,821.32/19,073.66 = 7,533.70/x
  3. Step 3: Cross multiply
    13,821.32x = 19,073.66 × 7,533.70
  4. Step 4: Simplify right side
    13,821.32x = 143,695,146.99
  5. Step 5: Solve for x
    x = 143,695,146.99/13,821.32
  6. Step 6: Final answer
    x = 10,396.63

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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.