Home / 13,287.49-18,331.04-8,506.26

Finding the Fourth Proportional to 13,287.49, 18,331.04 and 8,506.26

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Solution

The fourth proportional to 13,287.49, 18,331.04 and 8,506.26 is: 11,735.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.49 : 18,331.04 = 8,506.26 : x
  2. Step 2: Convert to fraction form
    13,287.49/18,331.04 = 8,506.26/x
  3. Step 3: Cross multiply
    13,287.49x = 18,331.04 × 8,506.26
  4. Step 4: Simplify right side
    13,287.49x = 155,928,613.58
  5. Step 5: Solve for x
    x = 155,928,613.58/13,287.49
  6. Step 6: Final answer
    x = 11,735.00

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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.