Home / 13,995.25-19,313.16-7,621.92

Finding the Fourth Proportional to 13,995.25, 19,313.16 and 7,621.92

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Solution

The fourth proportional to 13,995.25, 19,313.16 and 7,621.92 is: 10,518.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,995.25 : 19,313.16 = 7,621.92 : x
  2. Step 2: Convert to fraction form
    13,995.25/19,313.16 = 7,621.92/x
  3. Step 3: Cross multiply
    13,995.25x = 19,313.16 × 7,621.92
  4. Step 4: Simplify right side
    13,995.25x = 147,203,331.89
  5. Step 5: Solve for x
    x = 147,203,331.89/13,995.25
  6. Step 6: Final answer
    x = 10,518.09

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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.