Home / 15,713.93-21,685.59-8,544.26

Finding the Fourth Proportional to 15,713.93, 21,685.59 and 8,544.26

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Solution

The fourth proportional to 15,713.93, 21,685.59 and 8,544.26 is: 11,791.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,713.93 : 21,685.59 = 8,544.26 : x
  2. Step 2: Convert to fraction form
    15,713.93/21,685.59 = 8,544.26/x
  3. Step 3: Cross multiply
    15,713.93x = 21,685.59 × 8,544.26
  4. Step 4: Simplify right side
    15,713.93x = 185,287,210.79
  5. Step 5: Solve for x
    x = 185,287,210.79/15,713.93
  6. Step 6: Final answer
    x = 11,791.27

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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.