Home / 10,969.22-15,133.21-6,491.34

Finding the Fourth Proportional to 10,969.22, 15,133.21 and 6,491.34

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Solution

The fourth proportional to 10,969.22, 15,133.21 and 6,491.34 is: 8,955.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,969.22 : 15,133.21 = 6,491.34 : x
  2. Step 2: Convert to fraction form
    10,969.22/15,133.21 = 6,491.34/x
  3. Step 3: Cross multiply
    10,969.22x = 15,133.21 × 6,491.34
  4. Step 4: Simplify right side
    10,969.22x = 98,234,735.74
  5. Step 5: Solve for x
    x = 98,234,735.74/10,969.22
  6. Step 6: Final answer
    x = 8,955.49

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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.