Home / 15,475.67-21,308.61-12,086.37

Finding the Fourth Proportional to 15,475.67, 21,308.61 and 12,086.37

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Solution

The fourth proportional to 15,475.67, 21,308.61 and 12,086.37 is: 16,641.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,475.67 : 21,308.61 = 12,086.37 : x
  2. Step 2: Convert to fraction form
    15,475.67/21,308.61 = 12,086.37/x
  3. Step 3: Cross multiply
    15,475.67x = 21,308.61 × 12,086.37
  4. Step 4: Simplify right side
    15,475.67x = 257,543,684.21
  5. Step 5: Solve for x
    x = 257,543,684.21/15,475.67
  6. Step 6: Final answer
    x = 16,641.84

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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.