Home / 13,478.32-20,218.29-5,684.50

Finding the Fourth Proportional to 13,478.32, 20,218.29 and 5,684.50

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Solution

The fourth proportional to 13,478.32, 20,218.29 and 5,684.50 is: 8,527.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,478.32 : 20,218.29 = 5,684.50 : x
  2. Step 2: Convert to fraction form
    13,478.32/20,218.29 = 5,684.50/x
  3. Step 3: Cross multiply
    13,478.32x = 20,218.29 × 5,684.50
  4. Step 4: Simplify right side
    13,478.32x = 114,930,869.51
  5. Step 5: Solve for x
    x = 114,930,869.51/13,478.32
  6. Step 6: Final answer
    x = 8,527.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.