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Finding the Fourth Proportional to 13,392.62, 18,483.99 and 12,802.04

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Solution

The fourth proportional to 13,392.62, 18,483.99 and 12,802.04 is: 17,668.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.62 : 18,483.99 = 12,802.04 : x
  2. Step 2: Convert to fraction form
    13,392.62/18,483.99 = 12,802.04/x
  3. Step 3: Cross multiply
    13,392.62x = 18,483.99 × 12,802.04
  4. Step 4: Simplify right side
    13,392.62x = 236,632,779.34
  5. Step 5: Solve for x
    x = 236,632,779.34/13,392.62
  6. Step 6: Final answer
    x = 17,668.89

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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.