Home / 13,562.20-18,715.32-7,896.64

Finding the Fourth Proportional to 13,562.20, 18,715.32 and 7,896.64

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Solution

The fourth proportional to 13,562.20, 18,715.32 and 7,896.64 is: 10,897.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,562.20 : 18,715.32 = 7,896.64 : x
  2. Step 2: Convert to fraction form
    13,562.20/18,715.32 = 7,896.64/x
  3. Step 3: Cross multiply
    13,562.20x = 18,715.32 × 7,896.64
  4. Step 4: Simplify right side
    13,562.20x = 147,788,144.52
  5. Step 5: Solve for x
    x = 147,788,144.52/13,562.20
  6. Step 6: Final answer
    x = 10,897.06

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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.