Home / 10,125.45-13,973.15-5,649.09

Finding the Fourth Proportional to 10,125.45, 13,973.15 and 5,649.09

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Solution

The fourth proportional to 10,125.45, 13,973.15 and 5,649.09 is: 7,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,125.45 : 13,973.15 = 5,649.09 : x
  2. Step 2: Convert to fraction form
    10,125.45/13,973.15 = 5,649.09/x
  3. Step 3: Cross multiply
    10,125.45x = 13,973.15 × 5,649.09
  4. Step 4: Simplify right side
    10,125.45x = 78,935,581.93
  5. Step 5: Solve for x
    x = 78,935,581.93/10,125.45
  6. Step 6: Final answer
    x = 7,795.76

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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.