Home / 19,636.88-27,088.36-13,658.15

Finding the Fourth Proportional to 19,636.88, 27,088.36 and 13,658.15

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Solution

The fourth proportional to 19,636.88, 27,088.36 and 13,658.15 is: 18,840.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,636.88 : 27,088.36 = 13,658.15 : x
  2. Step 2: Convert to fraction form
    19,636.88/27,088.36 = 13,658.15/x
  3. Step 3: Cross multiply
    19,636.88x = 27,088.36 × 13,658.15
  4. Step 4: Simplify right side
    19,636.88x = 369,976,917.71
  5. Step 5: Solve for x
    x = 369,976,917.71/19,636.88
  6. Step 6: Final answer
    x = 18,840.93

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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.