Home / 13,855.95-19,121.00-7,568.19

Finding the Fourth Proportional to 13,855.95, 19,121.00 and 7,568.19

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Solution

The fourth proportional to 13,855.95, 19,121.00 and 7,568.19 is: 10,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,855.95 : 19,121.00 = 7,568.19 : x
  2. Step 2: Convert to fraction form
    13,855.95/19,121.00 = 7,568.19/x
  3. Step 3: Cross multiply
    13,855.95x = 19,121.00 × 7,568.19
  4. Step 4: Simplify right side
    13,855.95x = 144,711,323.15
  5. Step 5: Solve for x
    x = 144,711,323.15/13,855.95
  6. Step 6: Final answer
    x = 10,443.98

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Double scale
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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.