Home / 10,419.56-15,628.79-2,923.64

Finding the Fourth Proportional to 10,419.56, 15,628.79 and 2,923.64

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Solution

The fourth proportional to 10,419.56, 15,628.79 and 2,923.64 is: 4,385.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,419.56 : 15,628.79 = 2,923.64 : x
  2. Step 2: Convert to fraction form
    10,419.56/15,628.79 = 2,923.64/x
  3. Step 3: Cross multiply
    10,419.56x = 15,628.79 × 2,923.64
  4. Step 4: Simplify right side
    10,419.56x = 45,692,955.60
  5. Step 5: Solve for x
    x = 45,692,955.60/10,419.56
  6. Step 6: Final answer
    x = 4,385.31

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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.