Home / 13,256.34-18,284.55-9,278.42

Finding the Fourth Proportional to 13,256.34, 18,284.55 and 9,278.42

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Solution

The fourth proportional to 13,256.34, 18,284.55 and 9,278.42 is: 12,797.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,256.34 : 18,284.55 = 9,278.42 : x
  2. Step 2: Convert to fraction form
    13,256.34/18,284.55 = 9,278.42/x
  3. Step 3: Cross multiply
    13,256.34x = 18,284.55 × 9,278.42
  4. Step 4: Simplify right side
    13,256.34x = 169,651,734.41
  5. Step 5: Solve for x
    x = 169,651,734.41/13,256.34
  6. Step 6: Final answer
    x = 12,797.78

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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.