Home / 11,290.40-16,937.40-4,713.20

Finding the Fourth Proportional to 11,290.40, 16,937.40 and 4,713.20

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Solution

The fourth proportional to 11,290.40, 16,937.40 and 4,713.20 is: 7,070.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,290.40 : 16,937.40 = 4,713.20 : x
  2. Step 2: Convert to fraction form
    11,290.40/16,937.40 = 4,713.20/x
  3. Step 3: Cross multiply
    11,290.40x = 16,937.40 × 4,713.20
  4. Step 4: Simplify right side
    11,290.40x = 79,829,353.68
  5. Step 5: Solve for x
    x = 79,829,353.68/11,290.40
  6. Step 6: Final answer
    x = 7,070.55

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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.