Home / 13,939.47-20,905.06-4,577.74

Finding the Fourth Proportional to 13,939.47, 20,905.06 and 4,577.74

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Solution

The fourth proportional to 13,939.47, 20,905.06 and 4,577.74 is: 6,865.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,939.47 : 20,905.06 = 4,577.74 : x
  2. Step 2: Convert to fraction form
    13,939.47/20,905.06 = 4,577.74/x
  3. Step 3: Cross multiply
    13,939.47x = 20,905.06 × 4,577.74
  4. Step 4: Simplify right side
    13,939.47x = 95,697,945.91
  5. Step 5: Solve for x
    x = 95,697,945.91/13,939.47
  6. Step 6: Final answer
    x = 6,865.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.