Home / 18,421.50-27,636.36-6,734.40

Finding the Fourth Proportional to 18,421.50, 27,636.36 and 6,734.40

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Solution

The fourth proportional to 18,421.50, 27,636.36 and 6,734.40 is: 10,103.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,421.50 : 27,636.36 = 6,734.40 : x
  2. Step 2: Convert to fraction form
    18,421.50/27,636.36 = 6,734.40/x
  3. Step 3: Cross multiply
    18,421.50x = 27,636.36 × 6,734.40
  4. Step 4: Simplify right side
    18,421.50x = 186,114,302.78
  5. Step 5: Solve for x
    x = 186,114,302.78/18,421.50
  6. Step 6: Final answer
    x = 10,103.10

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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.