Home / 10,926.92-15,078.70-6,450.84

Finding the Fourth Proportional to 10,926.92, 15,078.70 and 6,450.84

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Solution

The fourth proportional to 10,926.92, 15,078.70 and 6,450.84 is: 8,901.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,926.92 : 15,078.70 = 6,450.84 : x
  2. Step 2: Convert to fraction form
    10,926.92/15,078.70 = 6,450.84/x
  3. Step 3: Cross multiply
    10,926.92x = 15,078.70 × 6,450.84
  4. Step 4: Simplify right side
    10,926.92x = 97,270,281.11
  5. Step 5: Solve for x
    x = 97,270,281.11/10,926.92
  6. Step 6: Final answer
    x = 8,901.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.