Home / 15,743.51-21,723.73-8,936.47

Finding the Fourth Proportional to 15,743.51, 21,723.73 and 8,936.47

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Solution

The fourth proportional to 15,743.51, 21,723.73 and 8,936.47 is: 12,331.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.51 : 21,723.73 = 8,936.47 : x
  2. Step 2: Convert to fraction form
    15,743.51/21,723.73 = 8,936.47/x
  3. Step 3: Cross multiply
    15,743.51x = 21,723.73 × 8,936.47
  4. Step 4: Simplify right side
    15,743.51x = 194,133,461.43
  5. Step 5: Solve for x
    x = 194,133,461.43/15,743.51
  6. Step 6: Final answer
    x = 12,331.02

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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.