Home / 13,864.60-19,125.21-9,380.44

Finding the Fourth Proportional to 13,864.60, 19,125.21 and 9,380.44

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Solution

The fourth proportional to 13,864.60, 19,125.21 and 9,380.44 is: 12,939.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.60 : 19,125.21 = 9,380.44 : x
  2. Step 2: Convert to fraction form
    13,864.60/19,125.21 = 9,380.44/x
  3. Step 3: Cross multiply
    13,864.60x = 19,125.21 × 9,380.44
  4. Step 4: Simplify right side
    13,864.60x = 179,402,884.89
  5. Step 5: Solve for x
    x = 179,402,884.89/13,864.60
  6. Step 6: Final answer
    x = 12,939.64

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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.