Home / 9,140.56-13,710.68-2,215.04

Finding the Fourth Proportional to 9,140.56, 13,710.68 and 2,215.04

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Solution

The fourth proportional to 9,140.56, 13,710.68 and 2,215.04 is: 3,322.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.56 : 13,710.68 = 2,215.04 : x
  2. Step 2: Convert to fraction form
    9,140.56/13,710.68 = 2,215.04/x
  3. Step 3: Cross multiply
    9,140.56x = 13,710.68 × 2,215.04
  4. Step 4: Simplify right side
    9,140.56x = 30,369,704.63
  5. Step 5: Solve for x
    x = 30,369,704.63/9,140.56
  6. Step 6: Final answer
    x = 3,322.52

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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.