Home / 15,533.37-21,448.70-12,662.55

Finding the Fourth Proportional to 15,533.37, 21,448.70 and 12,662.55

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Solution

The fourth proportional to 15,533.37, 21,448.70 and 12,662.55 is: 17,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,533.37 : 21,448.70 = 12,662.55 : x
  2. Step 2: Convert to fraction form
    15,533.37/21,448.70 = 12,662.55/x
  3. Step 3: Cross multiply
    15,533.37x = 21,448.70 × 12,662.55
  4. Step 4: Simplify right side
    15,533.37x = 271,595,172.87
  5. Step 5: Solve for x
    x = 271,595,172.87/15,533.37
  6. Step 6: Final answer
    x = 17,484.62

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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.