Home / 12,621.36-17,399.36-9,035.32

Finding the Fourth Proportional to 12,621.36, 17,399.36 and 9,035.32

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Solution

The fourth proportional to 12,621.36, 17,399.36 and 9,035.32 is: 12,455.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,621.36 : 17,399.36 = 9,035.32 : x
  2. Step 2: Convert to fraction form
    12,621.36/17,399.36 = 9,035.32/x
  3. Step 3: Cross multiply
    12,621.36x = 17,399.36 × 9,035.32
  4. Step 4: Simplify right side
    12,621.36x = 157,208,785.40
  5. Step 5: Solve for x
    x = 157,208,785.40/12,621.36
  6. Step 6: Final answer
    x = 12,455.77

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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.