Home / 10,910.70-15,052.01-6,875.09

Finding the Fourth Proportional to 10,910.70, 15,052.01 and 6,875.09

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Solution

The fourth proportional to 10,910.70, 15,052.01 and 6,875.09 is: 9,484.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,910.70 : 15,052.01 = 6,875.09 : x
  2. Step 2: Convert to fraction form
    10,910.70/15,052.01 = 6,875.09/x
  3. Step 3: Cross multiply
    10,910.70x = 15,052.01 × 6,875.09
  4. Step 4: Simplify right side
    10,910.70x = 103,483,813.80
  5. Step 5: Solve for x
    x = 103,483,813.80/10,910.70
  6. Step 6: Final answer
    x = 9,484.62

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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.