Home / 13,993.06-19,305.75-9,509.08

Finding the Fourth Proportional to 13,993.06, 19,305.75 and 9,509.08

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Solution

The fourth proportional to 13,993.06, 19,305.75 and 9,509.08 is: 13,119.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,993.06 : 19,305.75 = 9,509.08 : x
  2. Step 2: Convert to fraction form
    13,993.06/19,305.75 = 9,509.08/x
  3. Step 3: Cross multiply
    13,993.06x = 19,305.75 × 9,509.08
  4. Step 4: Simplify right side
    13,993.06x = 183,579,921.21
  5. Step 5: Solve for x
    x = 183,579,921.21/13,993.06
  6. Step 6: Final answer
    x = 13,119.35

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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.