Home / 8,427.76-11,626.68-5,283.34

Finding the Fourth Proportional to 8,427.76, 11,626.68 and 5,283.34

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Solution

The fourth proportional to 8,427.76, 11,626.68 and 5,283.34 is: 7,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,427.76 : 11,626.68 = 5,283.34 : x
  2. Step 2: Convert to fraction form
    8,427.76/11,626.68 = 5,283.34/x
  3. Step 3: Cross multiply
    8,427.76x = 11,626.68 × 5,283.34
  4. Step 4: Simplify right side
    8,427.76x = 61,427,703.51
  5. Step 5: Solve for x
    x = 61,427,703.51/8,427.76
  6. Step 6: Final answer
    x = 7,288.73

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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.