Home / 8,072.16-11,139.78-4,535.64

Finding the Fourth Proportional to 8,072.16, 11,139.78 and 4,535.64

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Solution

The fourth proportional to 8,072.16, 11,139.78 and 4,535.64 is: 6,259.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,072.16 : 11,139.78 = 4,535.64 : x
  2. Step 2: Convert to fraction form
    8,072.16/11,139.78 = 4,535.64/x
  3. Step 3: Cross multiply
    8,072.16x = 11,139.78 × 4,535.64
  4. Step 4: Simplify right side
    8,072.16x = 50,526,031.76
  5. Step 5: Solve for x
    x = 50,526,031.76/8,072.16
  6. Step 6: Final answer
    x = 6,259.30

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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.