Home / 19,131.16-28,708.08-10,365.88

Finding the Fourth Proportional to 19,131.16, 28,708.08 and 10,365.88

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Solution

The fourth proportional to 19,131.16, 28,708.08 and 10,365.88 is: 15,554.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,131.16 : 28,708.08 = 10,365.88 : x
  2. Step 2: Convert to fraction form
    19,131.16/28,708.08 = 10,365.88/x
  3. Step 3: Cross multiply
    19,131.16x = 28,708.08 × 10,365.88
  4. Step 4: Simplify right side
    19,131.16x = 297,584,512.31
  5. Step 5: Solve for x
    x = 297,584,512.31/19,131.16
  6. Step 6: Final answer
    x = 15,554.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.