Home / 13,362.23-20,037.42-7,121.08

Finding the Fourth Proportional to 13,362.23, 20,037.42 and 7,121.08

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Solution

The fourth proportional to 13,362.23, 20,037.42 and 7,121.08 is: 10,678.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.23 : 20,037.42 = 7,121.08 : x
  2. Step 2: Convert to fraction form
    13,362.23/20,037.42 = 7,121.08/x
  3. Step 3: Cross multiply
    13,362.23x = 20,037.42 × 7,121.08
  4. Step 4: Simplify right side
    13,362.23x = 142,688,007.37
  5. Step 5: Solve for x
    x = 142,688,007.37/13,362.23
  6. Step 6: Final answer
    x = 10,678.46

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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.