Home / 9,140.67-13,710.96-2,215.17

Finding the Fourth Proportional to 9,140.67, 13,710.96 and 2,215.17

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Solution

The fourth proportional to 9,140.67, 13,710.96 and 2,215.17 is: 3,322.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.67 : 13,710.96 = 2,215.17 : x
  2. Step 2: Convert to fraction form
    9,140.67/13,710.96 = 2,215.17/x
  3. Step 3: Cross multiply
    9,140.67x = 13,710.96 × 2,215.17
  4. Step 4: Simplify right side
    9,140.67x = 30,372,107.26
  5. Step 5: Solve for x
    x = 30,372,107.26/9,140.67
  6. Step 6: Final answer
    x = 3,322.74

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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.