Home / 13,219.76-19,817.88-5,017.52

Finding the Fourth Proportional to 13,219.76, 19,817.88 and 5,017.52

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Solution

The fourth proportional to 13,219.76, 19,817.88 and 5,017.52 is: 7,521.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.76 : 19,817.88 = 5,017.52 : x
  2. Step 2: Convert to fraction form
    13,219.76/19,817.88 = 5,017.52/x
  3. Step 3: Cross multiply
    13,219.76x = 19,817.88 × 5,017.52
  4. Step 4: Simplify right side
    13,219.76x = 99,436,609.26
  5. Step 5: Solve for x
    x = 99,436,609.26/13,219.76
  6. Step 6: Final answer
    x = 7,521.82

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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.