Home / 13,822.16-20,719.80-6,875.60

Finding the Fourth Proportional to 13,822.16, 20,719.80 and 6,875.60

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Solution

The fourth proportional to 13,822.16, 20,719.80 and 6,875.60 is: 10,306.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,822.16 : 20,719.80 = 6,875.60 : x
  2. Step 2: Convert to fraction form
    13,822.16/20,719.80 = 6,875.60/x
  3. Step 3: Cross multiply
    13,822.16x = 20,719.80 × 6,875.60
  4. Step 4: Simplify right side
    13,822.16x = 142,461,056.88
  5. Step 5: Solve for x
    x = 142,461,056.88/13,822.16
  6. Step 6: Final answer
    x = 10,306.71

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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.