Home / 15,865.56-23,681.16-13,997.88

Finding the Fourth Proportional to 15,865.56, 23,681.16 and 13,997.88

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Solution

The fourth proportional to 15,865.56, 23,681.16 and 13,997.88 is: 20,893.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,865.56 : 23,681.16 = 13,997.88 : x
  2. Step 2: Convert to fraction form
    15,865.56/23,681.16 = 13,997.88/x
  3. Step 3: Cross multiply
    15,865.56x = 23,681.16 × 13,997.88
  4. Step 4: Simplify right side
    15,865.56x = 331,486,035.94
  5. Step 5: Solve for x
    x = 331,486,035.94/15,865.56
  6. Step 6: Final answer
    x = 20,893.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.