Home / 10,495.35-15,740.92-5,156.30

Finding the Fourth Proportional to 10,495.35, 15,740.92 and 5,156.30

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Solution

The fourth proportional to 10,495.35, 15,740.92 and 5,156.30 is: 7,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,495.35 : 15,740.92 = 5,156.30 : x
  2. Step 2: Convert to fraction form
    10,495.35/15,740.92 = 5,156.30/x
  3. Step 3: Cross multiply
    10,495.35x = 15,740.92 × 5,156.30
  4. Step 4: Simplify right side
    10,495.35x = 81,164,905.80
  5. Step 5: Solve for x
    x = 81,164,905.80/10,495.35
  6. Step 6: Final answer
    x = 7,733.42

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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.