Home / 13,867.19-20,792.45-5,423.63

Finding the Fourth Proportional to 13,867.19, 20,792.45 and 5,423.63

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Solution

The fourth proportional to 13,867.19, 20,792.45 and 5,423.63 is: 8,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,867.19 : 20,792.45 = 5,423.63 : x
  2. Step 2: Convert to fraction form
    13,867.19/20,792.45 = 5,423.63/x
  3. Step 3: Cross multiply
    13,867.19x = 20,792.45 × 5,423.63
  4. Step 4: Simplify right side
    13,867.19x = 112,770,424.51
  5. Step 5: Solve for x
    x = 112,770,424.51/13,867.19
  6. Step 6: Final answer
    x = 8,132.18

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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.