Home / 9,631.26-13,291.12-5,215.26

Finding the Fourth Proportional to 9,631.26, 13,291.12 and 5,215.26

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Solution

The fourth proportional to 9,631.26, 13,291.12 and 5,215.26 is: 7,197.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,631.26 : 13,291.12 = 5,215.26 : x
  2. Step 2: Convert to fraction form
    9,631.26/13,291.12 = 5,215.26/x
  3. Step 3: Cross multiply
    9,631.26x = 13,291.12 × 5,215.26
  4. Step 4: Simplify right side
    9,631.26x = 69,316,646.49
  5. Step 5: Solve for x
    x = 69,316,646.49/9,631.26
  6. Step 6: Final answer
    x = 7,197.05

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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.