Home / 11,346.90-17,020.35-4,421.40

Finding the Fourth Proportional to 11,346.90, 17,020.35 and 4,421.40

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Solution

The fourth proportional to 11,346.90, 17,020.35 and 4,421.40 is: 6,632.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,346.90 : 17,020.35 = 4,421.40 : x
  2. Step 2: Convert to fraction form
    11,346.90/17,020.35 = 4,421.40/x
  3. Step 3: Cross multiply
    11,346.90x = 17,020.35 × 4,421.40
  4. Step 4: Simplify right side
    11,346.90x = 75,253,775.49
  5. Step 5: Solve for x
    x = 75,253,775.49/11,346.90
  6. Step 6: Final answer
    x = 6,632.10

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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.