Home / 13,172.40-19,759.64-4,407.35

Finding the Fourth Proportional to 13,172.40, 19,759.64 and 4,407.35

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Solution

The fourth proportional to 13,172.40, 19,759.64 and 4,407.35 is: 6,611.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,172.40 : 19,759.64 = 4,407.35 : x
  2. Step 2: Convert to fraction form
    13,172.40/19,759.64 = 4,407.35/x
  3. Step 3: Cross multiply
    13,172.40x = 19,759.64 × 4,407.35
  4. Step 4: Simplify right side
    13,172.40x = 87,087,528.52
  5. Step 5: Solve for x
    x = 87,087,528.52/13,172.40
  6. Step 6: Final answer
    x = 6,611.36

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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.