Home / 9,631.04-13,290.76-5,215.04

Finding the Fourth Proportional to 9,631.04, 13,290.76 and 5,215.04

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Solution

The fourth proportional to 9,631.04, 13,290.76 and 5,215.04 is: 7,196.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.04 : 13,290.76 = 5,215.04 : x
  2. Step 2: Convert to fraction form
    9,631.04/13,290.76 = 5,215.04/x
  3. Step 3: Cross multiply
    9,631.04x = 13,290.76 × 5,215.04
  4. Step 4: Simplify right side
    9,631.04x = 69,311,845.03
  5. Step 5: Solve for x
    x = 69,311,845.03/9,631.04
  6. Step 6: Final answer
    x = 7,196.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.