Home / 13,250.18-18,274.58-11,653.40

Finding the Fourth Proportional to 13,250.18, 18,274.58 and 11,653.40

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Solution

The fourth proportional to 13,250.18, 18,274.58 and 11,653.40 is: 16,072.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.18 : 18,274.58 = 11,653.40 : x
  2. Step 2: Convert to fraction form
    13,250.18/18,274.58 = 11,653.40/x
  3. Step 3: Cross multiply
    13,250.18x = 18,274.58 × 11,653.40
  4. Step 4: Simplify right side
    13,250.18x = 212,960,990.57
  5. Step 5: Solve for x
    x = 212,960,990.57/13,250.18
  6. Step 6: Final answer
    x = 16,072.31

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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.