Home / 15,314.27-21,135.65-9,344.67

Finding the Fourth Proportional to 15,314.27, 21,135.65 and 9,344.67

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Solution

The fourth proportional to 15,314.27, 21,135.65 and 9,344.67 is: 12,896.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,314.27 : 21,135.65 = 9,344.67 : x
  2. Step 2: Convert to fraction form
    15,314.27/21,135.65 = 9,344.67/x
  3. Step 3: Cross multiply
    15,314.27x = 21,135.65 × 9,344.67
  4. Step 4: Simplify right side
    15,314.27x = 197,505,674.49
  5. Step 5: Solve for x
    x = 197,505,674.49/15,314.27
  6. Step 6: Final answer
    x = 12,896.84

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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.