Home / 9,001.20-13,496.88-3,157.28

Finding the Fourth Proportional to 9,001.20, 13,496.88 and 3,157.28

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Solution

The fourth proportional to 9,001.20, 13,496.88 and 3,157.28 is: 4,734.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,001.20 : 13,496.88 = 3,157.28 : x
  2. Step 2: Convert to fraction form
    9,001.20/13,496.88 = 3,157.28/x
  3. Step 3: Cross multiply
    9,001.20x = 13,496.88 × 3,157.28
  4. Step 4: Simplify right side
    9,001.20x = 42,613,429.29
  5. Step 5: Solve for x
    x = 42,613,429.29/9,001.20
  6. Step 6: Final answer
    x = 4,734.19

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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.