Home / 13,434.84-20,154.33-6,857.46

Finding the Fourth Proportional to 13,434.84, 20,154.33 and 6,857.46

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Solution

The fourth proportional to 13,434.84, 20,154.33 and 6,857.46 is: 10,287.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.84 : 20,154.33 = 6,857.46 : x
  2. Step 2: Convert to fraction form
    13,434.84/20,154.33 = 6,857.46/x
  3. Step 3: Cross multiply
    13,434.84x = 20,154.33 × 6,857.46
  4. Step 4: Simplify right side
    13,434.84x = 138,207,511.80
  5. Step 5: Solve for x
    x = 138,207,511.80/13,434.84
  6. Step 6: Final answer
    x = 10,287.25

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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.