Home / 13,428.34-20,145.30-4,068.88

Finding the Fourth Proportional to 13,428.34, 20,145.30 and 4,068.88

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Solution

The fourth proportional to 13,428.34, 20,145.30 and 4,068.88 is: 6,104.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.34 : 20,145.30 = 4,068.88 : x
  2. Step 2: Convert to fraction form
    13,428.34/20,145.30 = 4,068.88/x
  3. Step 3: Cross multiply
    13,428.34x = 20,145.30 × 4,068.88
  4. Step 4: Simplify right side
    13,428.34x = 81,968,808.26
  5. Step 5: Solve for x
    x = 81,968,808.26/13,428.34
  6. Step 6: Final answer
    x = 6,104.17

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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.