Home / 10,669.58-15,973.20-7,115.66

Finding the Fourth Proportional to 10,669.58, 15,973.20 and 7,115.66

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Solution

The fourth proportional to 10,669.58, 15,973.20 and 7,115.66 is: 10,652.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,669.58 : 15,973.20 = 7,115.66 : x
  2. Step 2: Convert to fraction form
    10,669.58/15,973.20 = 7,115.66/x
  3. Step 3: Cross multiply
    10,669.58x = 15,973.20 × 7,115.66
  4. Step 4: Simplify right side
    10,669.58x = 113,659,860.31
  5. Step 5: Solve for x
    x = 113,659,860.31/10,669.58
  6. Step 6: Final answer
    x = 10,652.70

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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.