Home / 10,309.40-15,466.20-3,289.22

Finding the Fourth Proportional to 10,309.40, 15,466.20 and 3,289.22

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Solution

The fourth proportional to 10,309.40, 15,466.20 and 3,289.22 is: 4,934.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,309.40 : 15,466.20 = 3,289.22 : x
  2. Step 2: Convert to fraction form
    10,309.40/15,466.20 = 3,289.22/x
  3. Step 3: Cross multiply
    10,309.40x = 15,466.20 × 3,289.22
  4. Step 4: Simplify right side
    10,309.40x = 50,871,734.36
  5. Step 5: Solve for x
    x = 50,871,734.36/10,309.40
  6. Step 6: Final answer
    x = 4,934.50

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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.