Home / 13,654.04-20,486.82-12,564.32

Finding the Fourth Proportional to 13,654.04, 20,486.82 and 12,564.32

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Solution

The fourth proportional to 13,654.04, 20,486.82 and 12,564.32 is: 18,851.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,654.04 : 20,486.82 = 12,564.32 : x
  2. Step 2: Convert to fraction form
    13,654.04/20,486.82 = 12,564.32/x
  3. Step 3: Cross multiply
    13,654.04x = 20,486.82 × 12,564.32
  4. Step 4: Simplify right side
    13,654.04x = 257,402,962.26
  5. Step 5: Solve for x
    x = 257,402,962.26/13,654.04
  6. Step 6: Final answer
    x = 18,851.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.