Home / 13,677.31-18,887.13-10,314.37

Finding the Fourth Proportional to 13,677.31, 18,887.13 and 10,314.37

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Solution

The fourth proportional to 13,677.31, 18,887.13 and 10,314.37 is: 14,243.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,677.31 : 18,887.13 = 10,314.37 : x
  2. Step 2: Convert to fraction form
    13,677.31/18,887.13 = 10,314.37/x
  3. Step 3: Cross multiply
    13,677.31x = 18,887.13 × 10,314.37
  4. Step 4: Simplify right side
    13,677.31x = 194,808,701.05
  5. Step 5: Solve for x
    x = 194,808,701.05/13,677.31
  6. Step 6: Final answer
    x = 14,243.21

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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.