Home / 11,570.40-17,355.64-2,805.30

Finding the Fourth Proportional to 11,570.40, 17,355.64 and 2,805.30

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Solution

The fourth proportional to 11,570.40, 17,355.64 and 2,805.30 is: 4,207.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,570.40 : 17,355.64 = 2,805.30 : x
  2. Step 2: Convert to fraction form
    11,570.40/17,355.64 = 2,805.30/x
  3. Step 3: Cross multiply
    11,570.40x = 17,355.64 × 2,805.30
  4. Step 4: Simplify right side
    11,570.40x = 48,687,776.89
  5. Step 5: Solve for x
    x = 48,687,776.89/11,570.40
  6. Step 6: Final answer
    x = 4,207.96

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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.