Home / 10,513.10-15,769.70-3,117.62

Finding the Fourth Proportional to 10,513.10, 15,769.70 and 3,117.62

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Solution

The fourth proportional to 10,513.10, 15,769.70 and 3,117.62 is: 4,676.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,513.10 : 15,769.70 = 3,117.62 : x
  2. Step 2: Convert to fraction form
    10,513.10/15,769.70 = 3,117.62/x
  3. Step 3: Cross multiply
    10,513.10x = 15,769.70 × 3,117.62
  4. Step 4: Simplify right side
    10,513.10x = 49,163,837.68
  5. Step 5: Solve for x
    x = 49,163,837.68/10,513.10
  6. Step 6: Final answer
    x = 4,676.44

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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.