Home / 13,244.80-18,271.56-8,207.68

Finding the Fourth Proportional to 13,244.80, 18,271.56 and 8,207.68

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Solution

The fourth proportional to 13,244.80, 18,271.56 and 8,207.68 is: 11,322.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,244.80 : 18,271.56 = 8,207.68 : x
  2. Step 2: Convert to fraction form
    13,244.80/18,271.56 = 8,207.68/x
  3. Step 3: Cross multiply
    13,244.80x = 18,271.56 × 8,207.68
  4. Step 4: Simplify right side
    13,244.80x = 149,967,117.58
  5. Step 5: Solve for x
    x = 149,967,117.58/13,244.80
  6. Step 6: Final answer
    x = 11,322.72

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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.