Home / 8,139.57-11,228.54-5,482.36

Finding the Fourth Proportional to 8,139.57, 11,228.54 and 5,482.36

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Solution

The fourth proportional to 8,139.57, 11,228.54 and 5,482.36 is: 7,562.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,139.57 : 11,228.54 = 5,482.36 : x
  2. Step 2: Convert to fraction form
    8,139.57/11,228.54 = 5,482.36/x
  3. Step 3: Cross multiply
    8,139.57x = 11,228.54 × 5,482.36
  4. Step 4: Simplify right side
    8,139.57x = 61,558,898.55
  5. Step 5: Solve for x
    x = 61,558,898.55/8,139.57
  6. Step 6: Final answer
    x = 7,562.92

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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.