Home / 12,491.40-17,203.05-12,219.24

Finding the Fourth Proportional to 12,491.40, 17,203.05 and 12,219.24

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Solution

The fourth proportional to 12,491.40, 17,203.05 and 12,219.24 is: 16,828.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,491.40 : 17,203.05 = 12,219.24 : x
  2. Step 2: Convert to fraction form
    12,491.40/17,203.05 = 12,219.24/x
  3. Step 3: Cross multiply
    12,491.40x = 17,203.05 × 12,219.24
  4. Step 4: Simplify right side
    12,491.40x = 210,208,196.68
  5. Step 5: Solve for x
    x = 210,208,196.68/12,491.40
  6. Step 6: Final answer
    x = 16,828.23

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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.