Home / 13,922.60-19,184.91-12,938.42

Finding the Fourth Proportional to 13,922.60, 19,184.91 and 12,938.42

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Solution

The fourth proportional to 13,922.60, 19,184.91 and 12,938.42 is: 17,828.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,922.60 : 19,184.91 = 12,938.42 : x
  2. Step 2: Convert to fraction form
    13,922.60/19,184.91 = 12,938.42/x
  3. Step 3: Cross multiply
    13,922.60x = 19,184.91 × 12,938.42
  4. Step 4: Simplify right side
    13,922.60x = 248,222,423.24
  5. Step 5: Solve for x
    x = 248,222,423.24/13,922.60
  6. Step 6: Final answer
    x = 17,828.74

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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.