Home / 9,021.20-13,528.08-3,176.40

Finding the Fourth Proportional to 9,021.20, 13,528.08 and 3,176.40

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Solution

The fourth proportional to 9,021.20, 13,528.08 and 3,176.40 is: 4,763.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,021.20 : 13,528.08 = 3,176.40 : x
  2. Step 2: Convert to fraction form
    9,021.20/13,528.08 = 3,176.40/x
  3. Step 3: Cross multiply
    9,021.20x = 13,528.08 × 3,176.40
  4. Step 4: Simplify right side
    9,021.20x = 42,970,593.31
  5. Step 5: Solve for x
    x = 42,970,593.31/9,021.20
  6. Step 6: Final answer
    x = 4,763.29

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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.