Home / 13,154.13-19,731.33-4,389.03

Finding the Fourth Proportional to 13,154.13, 19,731.33 and 4,389.03

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Solution

The fourth proportional to 13,154.13, 19,731.33 and 4,389.03 is: 6,583.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.13 : 19,731.33 = 4,389.03 : x
  2. Step 2: Convert to fraction form
    13,154.13/19,731.33 = 4,389.03/x
  3. Step 3: Cross multiply
    13,154.13x = 19,731.33 × 4,389.03
  4. Step 4: Simplify right side
    13,154.13x = 86,601,399.31
  5. Step 5: Solve for x
    x = 86,601,399.31/13,154.13
  6. Step 6: Final answer
    x = 6,583.59

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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.