Home / 8,281.68-11,428.56-4,555.68

Finding the Fourth Proportional to 8,281.68, 11,428.56 and 4,555.68

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Solution

The fourth proportional to 8,281.68, 11,428.56 and 4,555.68 is: 6,286.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,281.68 : 11,428.56 = 4,555.68 : x
  2. Step 2: Convert to fraction form
    8,281.68/11,428.56 = 4,555.68/x
  3. Step 3: Cross multiply
    8,281.68x = 11,428.56 × 4,555.68
  4. Step 4: Simplify right side
    8,281.68x = 52,064,862.22
  5. Step 5: Solve for x
    x = 52,064,862.22/8,281.68
  6. Step 6: Final answer
    x = 6,286.75

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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.