Home / 13,311.25-19,970.52-5,520.07

Finding the Fourth Proportional to 13,311.25, 19,970.52 and 5,520.07

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Solution

The fourth proportional to 13,311.25, 19,970.52 and 5,520.07 is: 8,281.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,311.25 : 19,970.52 = 5,520.07 : x
  2. Step 2: Convert to fraction form
    13,311.25/19,970.52 = 5,520.07/x
  3. Step 3: Cross multiply
    13,311.25x = 19,970.52 × 5,520.07
  4. Step 4: Simplify right side
    13,311.25x = 110,238,668.34
  5. Step 5: Solve for x
    x = 110,238,668.34/13,311.25
  6. Step 6: Final answer
    x = 8,281.62

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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.