Home / 13,752.36-18,986.94-10,211.40

Finding the Fourth Proportional to 13,752.36, 18,986.94 and 10,211.40

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Solution

The fourth proportional to 13,752.36, 18,986.94 and 10,211.40 is: 14,098.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,752.36 : 18,986.94 = 10,211.40 : x
  2. Step 2: Convert to fraction form
    13,752.36/18,986.94 = 10,211.40/x
  3. Step 3: Cross multiply
    13,752.36x = 18,986.94 × 10,211.40
  4. Step 4: Simplify right side
    13,752.36x = 193,883,239.12
  5. Step 5: Solve for x
    x = 193,883,239.12/13,752.36
  6. Step 6: Final answer
    x = 14,098.18

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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.