Home / 13,265.34-18,307.92-8,563.28

Finding the Fourth Proportional to 13,265.34, 18,307.92 and 8,563.28

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Solution

The fourth proportional to 13,265.34, 18,307.92 and 8,563.28 is: 11,818.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,265.34 : 18,307.92 = 8,563.28 : x
  2. Step 2: Convert to fraction form
    13,265.34/18,307.92 = 8,563.28/x
  3. Step 3: Cross multiply
    13,265.34x = 18,307.92 × 8,563.28
  4. Step 4: Simplify right side
    13,265.34x = 156,775,845.18
  5. Step 5: Solve for x
    x = 156,775,845.18/13,265.34
  6. Step 6: Final answer
    x = 11,818.46

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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.