Home / 13,287.12-18,336.48-8,573.04

Finding the Fourth Proportional to 13,287.12, 18,336.48 and 8,573.04

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Solution

The fourth proportional to 13,287.12, 18,336.48 and 8,573.04 is: 11,830.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,287.12 : 18,336.48 = 8,573.04 : x
  2. Step 2: Convert to fraction form
    13,287.12/18,336.48 = 8,573.04/x
  3. Step 3: Cross multiply
    13,287.12x = 18,336.48 × 8,573.04
  4. Step 4: Simplify right side
    13,287.12x = 157,199,376.50
  5. Step 5: Solve for x
    x = 157,199,376.50/13,287.12
  6. Step 6: Final answer
    x = 11,830.96

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Double scale
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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.