Home / 13,563.96-18,715.16-7,897.44

Finding the Fourth Proportional to 13,563.96, 18,715.16 and 7,897.44

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Solution

The fourth proportional to 13,563.96, 18,715.16 and 7,897.44 is: 10,896.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,563.96 : 18,715.16 = 7,897.44 : x
  2. Step 2: Convert to fraction form
    13,563.96/18,715.16 = 7,897.44/x
  3. Step 3: Cross multiply
    13,563.96x = 18,715.16 × 7,897.44
  4. Step 4: Simplify right side
    13,563.96x = 147,801,853.19
  5. Step 5: Solve for x
    x = 147,801,853.19/13,563.96
  6. Step 6: Final answer
    x = 10,896.66

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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.