Home / 13,455.10-18,544.71-12,677.50

Finding the Fourth Proportional to 13,455.10, 18,544.71 and 12,677.50

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Solution

The fourth proportional to 13,455.10, 18,544.71 and 12,677.50 is: 17,472.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.10 : 18,544.71 = 12,677.50 : x
  2. Step 2: Convert to fraction form
    13,455.10/18,544.71 = 12,677.50/x
  3. Step 3: Cross multiply
    13,455.10x = 18,544.71 × 12,677.50
  4. Step 4: Simplify right side
    13,455.10x = 235,100,561.03
  5. Step 5: Solve for x
    x = 235,100,561.03/13,455.10
  6. Step 6: Final answer
    x = 17,472.97

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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.