Home / 13,738.58-18,948.75-11,827.55

Finding the Fourth Proportional to 13,738.58, 18,948.75 and 11,827.55

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Solution

The fourth proportional to 13,738.58, 18,948.75 and 11,827.55 is: 16,312.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.58 : 18,948.75 = 11,827.55 : x
  2. Step 2: Convert to fraction form
    13,738.58/18,948.75 = 11,827.55/x
  3. Step 3: Cross multiply
    13,738.58x = 18,948.75 × 11,827.55
  4. Step 4: Simplify right side
    13,738.58x = 224,117,193.32
  5. Step 5: Solve for x
    x = 224,117,193.32/13,738.58
  6. Step 6: Final answer
    x = 16,312.99

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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.