Home / 9,011.81-13,519.53-3,172.52

Finding the Fourth Proportional to 9,011.81, 13,519.53 and 3,172.52

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Solution

The fourth proportional to 9,011.81, 13,519.53 and 3,172.52 is: 4,759.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,011.81 : 13,519.53 = 3,172.52 : x
  2. Step 2: Convert to fraction form
    9,011.81/13,519.53 = 3,172.52/x
  3. Step 3: Cross multiply
    9,011.81x = 13,519.53 × 3,172.52
  4. Step 4: Simplify right side
    9,011.81x = 42,890,911.72
  5. Step 5: Solve for x
    x = 42,890,911.72/9,011.81
  6. Step 6: Final answer
    x = 4,759.41

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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.