Home / 13,019.22-19,528.87-4,254.20

Finding the Fourth Proportional to 13,019.22, 19,528.87 and 4,254.20

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Solution

The fourth proportional to 13,019.22, 19,528.87 and 4,254.20 is: 6,381.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019.22 : 19,528.87 = 4,254.20 : x
  2. Step 2: Convert to fraction form
    13,019.22/19,528.87 = 4,254.20/x
  3. Step 3: Cross multiply
    13,019.22x = 19,528.87 × 4,254.20
  4. Step 4: Simplify right side
    13,019.22x = 83,079,718.75
  5. Step 5: Solve for x
    x = 83,079,718.75/13,019.22
  6. Step 6: Final answer
    x = 6,381.31

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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.