Home / 19,782.66-27,300.42-13,497.06

Finding the Fourth Proportional to 19,782.66, 27,300.42 and 13,497.06

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Solution

The fourth proportional to 19,782.66, 27,300.42 and 13,497.06 is: 18,626.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,782.66 : 27,300.42 = 13,497.06 : x
  2. Step 2: Convert to fraction form
    19,782.66/27,300.42 = 13,497.06/x
  3. Step 3: Cross multiply
    19,782.66x = 27,300.42 × 13,497.06
  4. Step 4: Simplify right side
    19,782.66x = 368,475,406.77
  5. Step 5: Solve for x
    x = 368,475,406.77/19,782.66
  6. Step 6: Final answer
    x = 18,626.18

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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.