Home / 15,021.45-20,729.34-9,056.39

Finding the Fourth Proportional to 15,021.45, 20,729.34 and 9,056.39

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Solution

The fourth proportional to 15,021.45, 20,729.34 and 9,056.39 is: 12,497.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,021.45 : 20,729.34 = 9,056.39 : x
  2. Step 2: Convert to fraction form
    15,021.45/20,729.34 = 9,056.39/x
  3. Step 3: Cross multiply
    15,021.45x = 20,729.34 × 9,056.39
  4. Step 4: Simplify right side
    15,021.45x = 187,732,883.84
  5. Step 5: Solve for x
    x = 187,732,883.84/15,021.45
  6. Step 6: Final answer
    x = 12,497.65

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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.