Home / 13,943.88-19,280.44-13,718.57

Finding the Fourth Proportional to 13,943.88, 19,280.44 and 13,718.57

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Solution

The fourth proportional to 13,943.88, 19,280.44 and 13,718.57 is: 18,968.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.88 : 19,280.44 = 13,718.57 : x
  2. Step 2: Convert to fraction form
    13,943.88/19,280.44 = 13,718.57/x
  3. Step 3: Cross multiply
    13,943.88x = 19,280.44 × 13,718.57
  4. Step 4: Simplify right side
    13,943.88x = 264,500,005.81
  5. Step 5: Solve for x
    x = 264,500,005.81/13,943.88
  6. Step 6: Final answer
    x = 18,968.89

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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.