Home / 13,307.76-18,372.96-9,344.88

Finding the Fourth Proportional to 13,307.76, 18,372.96 and 9,344.88

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Solution

The fourth proportional to 13,307.76, 18,372.96 and 9,344.88 is: 12,901.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.76 : 18,372.96 = 9,344.88 : x
  2. Step 2: Convert to fraction form
    13,307.76/18,372.96 = 9,344.88/x
  3. Step 3: Cross multiply
    13,307.76x = 18,372.96 × 9,344.88
  4. Step 4: Simplify right side
    13,307.76x = 171,693,106.44
  5. Step 5: Solve for x
    x = 171,693,106.44/13,307.76
  6. Step 6: Final answer
    x = 12,901.73

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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.