Home / 13,432.71-20,128.54-5,637.27

Finding the Fourth Proportional to 13,432.71, 20,128.54 and 5,637.27

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Solution

The fourth proportional to 13,432.71, 20,128.54 and 5,637.27 is: 8,447.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,432.71 : 20,128.54 = 5,637.27 : x
  2. Step 2: Convert to fraction form
    13,432.71/20,128.54 = 5,637.27/x
  3. Step 3: Cross multiply
    13,432.71x = 20,128.54 × 5,637.27
  4. Step 4: Simplify right side
    13,432.71x = 113,470,014.69
  5. Step 5: Solve for x
    x = 113,470,014.69/13,432.71
  6. Step 6: Final answer
    x = 8,447.29

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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.