Home / 10,765.50-14,860.55-7,179.16

Finding the Fourth Proportional to 10,765.50, 14,860.55 and 7,179.16

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Solution

The fourth proportional to 10,765.50, 14,860.55 and 7,179.16 is: 9,910.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,765.50 : 14,860.55 = 7,179.16 : x
  2. Step 2: Convert to fraction form
    10,765.50/14,860.55 = 7,179.16/x
  3. Step 3: Cross multiply
    10,765.50x = 14,860.55 × 7,179.16
  4. Step 4: Simplify right side
    10,765.50x = 106,686,193.09
  5. Step 5: Solve for x
    x = 106,686,193.09/10,765.50
  6. Step 6: Final answer
    x = 9,910.01

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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.