Home / 9,266.16-13,890.56-3,421.20

Finding the Fourth Proportional to 9,266.16, 13,890.56 and 3,421.20

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Solution

The fourth proportional to 9,266.16, 13,890.56 and 3,421.20 is: 5,128.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,266.16 : 13,890.56 = 3,421.20 : x
  2. Step 2: Convert to fraction form
    9,266.16/13,890.56 = 3,421.20/x
  3. Step 3: Cross multiply
    9,266.16x = 13,890.56 × 3,421.20
  4. Step 4: Simplify right side
    9,266.16x = 47,522,383.87
  5. Step 5: Solve for x
    x = 47,522,383.87/9,266.16
  6. Step 6: Final answer
    x = 5,128.60

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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.