Home / 8,285.40-11,434.82-4,749.72

Finding the Fourth Proportional to 8,285.40, 11,434.82 and 4,749.72

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Solution

The fourth proportional to 8,285.40, 11,434.82 and 4,749.72 is: 6,555.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,285.40 : 11,434.82 = 4,749.72 : x
  2. Step 2: Convert to fraction form
    8,285.40/11,434.82 = 4,749.72/x
  3. Step 3: Cross multiply
    8,285.40x = 11,434.82 × 4,749.72
  4. Step 4: Simplify right side
    8,285.40x = 54,312,193.25
  5. Step 5: Solve for x
    x = 54,312,193.25/8,285.40
  6. Step 6: Final answer
    x = 6,555.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.