Home / 13,285.37-18,333.08-7,315.91

Finding the Fourth Proportional to 13,285.37, 18,333.08 and 7,315.91

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Solution

The fourth proportional to 13,285.37, 18,333.08 and 7,315.91 is: 10,095.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.37 : 18,333.08 = 7,315.91 : x
  2. Step 2: Convert to fraction form
    13,285.37/18,333.08 = 7,315.91/x
  3. Step 3: Cross multiply
    13,285.37x = 18,333.08 × 7,315.91
  4. Step 4: Simplify right side
    13,285.37x = 134,123,163.30
  5. Step 5: Solve for x
    x = 134,123,163.30/13,285.37
  6. Step 6: Final answer
    x = 10,095.55

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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.