Home / 8,775.12-12,110.28-5,237.84

Finding the Fourth Proportional to 8,775.12, 12,110.28 and 5,237.84

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Solution

The fourth proportional to 8,775.12, 12,110.28 and 5,237.84 is: 7,228.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.12 : 12,110.28 = 5,237.84 : x
  2. Step 2: Convert to fraction form
    8,775.12/12,110.28 = 5,237.84/x
  3. Step 3: Cross multiply
    8,775.12x = 12,110.28 × 5,237.84
  4. Step 4: Simplify right side
    8,775.12x = 63,431,709.00
  5. Step 5: Solve for x
    x = 63,431,709.00/8,775.12
  6. Step 6: Final answer
    x = 7,228.59

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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.