Home / 13,865.60-19,126.59-9,381.44

Finding the Fourth Proportional to 13,865.60, 19,126.59 and 9,381.44

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Solution

The fourth proportional to 13,865.60, 19,126.59 and 9,381.44 is: 12,941.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.60 : 19,126.59 = 9,381.44 : x
  2. Step 2: Convert to fraction form
    13,865.60/19,126.59 = 9,381.44/x
  3. Step 3: Cross multiply
    13,865.60x = 19,126.59 × 9,381.44
  4. Step 4: Simplify right side
    13,865.60x = 179,434,956.49
  5. Step 5: Solve for x
    x = 179,434,956.49/13,865.60
  6. Step 6: Final answer
    x = 12,941.02

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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.