Home / 11,285.18-15,571.61-7,037.57

Finding the Fourth Proportional to 11,285.18, 15,571.61 and 7,037.57

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Solution

The fourth proportional to 11,285.18, 15,571.61 and 7,037.57 is: 9,710.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,285.18 : 15,571.61 = 7,037.57 : x
  2. Step 2: Convert to fraction form
    11,285.18/15,571.61 = 7,037.57/x
  3. Step 3: Cross multiply
    11,285.18x = 15,571.61 × 7,037.57
  4. Step 4: Simplify right side
    11,285.18x = 109,586,293.83
  5. Step 5: Solve for x
    x = 109,586,293.83/11,285.18
  6. Step 6: Final answer
    x = 9,710.64

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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.