Home / 13,968.84-20,925.20-6,461.88

Finding the Fourth Proportional to 13,968.84, 20,925.20 and 6,461.88

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Solution

The fourth proportional to 13,968.84, 20,925.20 and 6,461.88 is: 9,679.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,968.84 : 20,925.20 = 6,461.88 : x
  2. Step 2: Convert to fraction form
    13,968.84/20,925.20 = 6,461.88/x
  3. Step 3: Cross multiply
    13,968.84x = 20,925.20 × 6,461.88
  4. Step 4: Simplify right side
    13,968.84x = 135,216,099.07
  5. Step 5: Solve for x
    x = 135,216,099.07/13,968.84
  6. Step 6: Final answer
    x = 9,679.84

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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.