Home / 19,643.24-27,108.66-11,259.72

Finding the Fourth Proportional to 19,643.24, 27,108.66 and 11,259.72

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Solution

The fourth proportional to 19,643.24, 27,108.66 and 11,259.72 is: 15,538.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,643.24 : 27,108.66 = 11,259.72 : x
  2. Step 2: Convert to fraction form
    19,643.24/27,108.66 = 11,259.72/x
  3. Step 3: Cross multiply
    19,643.24x = 27,108.66 × 11,259.72
  4. Step 4: Simplify right side
    19,643.24x = 305,235,921.18
  5. Step 5: Solve for x
    x = 305,235,921.18/19,643.24
  6. Step 6: Final answer
    x = 15,538.98

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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.