Home / 13,282.88-18,330.50-7,314.68

Finding the Fourth Proportional to 13,282.88, 18,330.50 and 7,314.68

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Solution

The fourth proportional to 13,282.88, 18,330.50 and 7,314.68 is: 10,094.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,282.88 : 18,330.50 = 7,314.68 : x
  2. Step 2: Convert to fraction form
    13,282.88/18,330.50 = 7,314.68/x
  3. Step 3: Cross multiply
    13,282.88x = 18,330.50 × 7,314.68
  4. Step 4: Simplify right side
    13,282.88x = 134,081,741.74
  5. Step 5: Solve for x
    x = 134,081,741.74/13,282.88
  6. Step 6: Final answer
    x = 10,094.33

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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.