Home / 19,707.24-27,191.07-12,643.23

Finding the Fourth Proportional to 19,707.24, 27,191.07 and 12,643.23

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Solution

The fourth proportional to 19,707.24, 27,191.07 and 12,643.23 is: 17,444.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,707.24 : 27,191.07 = 12,643.23 : x
  2. Step 2: Convert to fraction form
    19,707.24/27,191.07 = 12,643.23/x
  3. Step 3: Cross multiply
    19,707.24x = 27,191.07 × 12,643.23
  4. Step 4: Simplify right side
    19,707.24x = 343,782,951.96
  5. Step 5: Solve for x
    x = 343,782,951.96/19,707.24
  6. Step 6: Final answer
    x = 17,444.50

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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.