Home / 19,287.79-26,636.12-13,334.83

Finding the Fourth Proportional to 19,287.79, 26,636.12 and 13,334.83

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Solution

The fourth proportional to 19,287.79, 26,636.12 and 13,334.83 is: 18,415.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,287.79 : 26,636.12 = 13,334.83 : x
  2. Step 2: Convert to fraction form
    19,287.79/26,636.12 = 13,334.83/x
  3. Step 3: Cross multiply
    19,287.79x = 26,636.12 × 13,334.83
  4. Step 4: Simplify right side
    19,287.79x = 355,188,132.06
  5. Step 5: Solve for x
    x = 355,188,132.06/19,287.79
  6. Step 6: Final answer
    x = 18,415.18

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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.