Home / 13,284.80-19,927.20-5,491.52

Finding the Fourth Proportional to 13,284.80, 19,927.20 and 5,491.52

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Solution

The fourth proportional to 13,284.80, 19,927.20 and 5,491.52 is: 8,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,284.80 : 19,927.20 = 5,491.52 : x
  2. Step 2: Convert to fraction form
    13,284.80/19,927.20 = 5,491.52/x
  3. Step 3: Cross multiply
    13,284.80x = 19,927.20 × 5,491.52
  4. Step 4: Simplify right side
    13,284.80x = 109,430,617.34
  5. Step 5: Solve for x
    x = 109,430,617.34/13,284.80
  6. Step 6: Final answer
    x = 8,237.28

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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.