Home / 13,015.35-19,526.10-5,619.88

Finding the Fourth Proportional to 13,015.35, 19,526.10 and 5,619.88

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Solution

The fourth proportional to 13,015.35, 19,526.10 and 5,619.88 is: 8,431.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,015.35 : 19,526.10 = 5,619.88 : x
  2. Step 2: Convert to fraction form
    13,015.35/19,526.10 = 5,619.88/x
  3. Step 3: Cross multiply
    13,015.35x = 19,526.10 × 5,619.88
  4. Step 4: Simplify right side
    13,015.35x = 109,734,342.20
  5. Step 5: Solve for x
    x = 109,734,342.20/13,015.35
  6. Step 6: Final answer
    x = 8,431.15

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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.