Home / 11,705.85-17,558.79-4,780.35

Finding the Fourth Proportional to 11,705.85, 17,558.79 and 4,780.35

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Solution

The fourth proportional to 11,705.85, 17,558.79 and 4,780.35 is: 7,170.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,705.85 : 17,558.79 = 4,780.35 : x
  2. Step 2: Convert to fraction form
    11,705.85/17,558.79 = 4,780.35/x
  3. Step 3: Cross multiply
    11,705.85x = 17,558.79 × 4,780.35
  4. Step 4: Simplify right side
    11,705.85x = 83,937,050.08
  5. Step 5: Solve for x
    x = 83,937,050.08/11,705.85
  6. Step 6: Final answer
    x = 7,170.52

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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.