Home / 11,430.85-15,739.52-10,006.57

Finding the Fourth Proportional to 11,430.85, 15,739.52 and 10,006.57

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Solution

The fourth proportional to 11,430.85, 15,739.52 and 10,006.57 is: 13,778.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,430.85 : 15,739.52 = 10,006.57 : x
  2. Step 2: Convert to fraction form
    11,430.85/15,739.52 = 10,006.57/x
  3. Step 3: Cross multiply
    11,430.85x = 15,739.52 × 10,006.57
  4. Step 4: Simplify right side
    11,430.85x = 157,498,529.95
  5. Step 5: Solve for x
    x = 157,498,529.95/11,430.85
  6. Step 6: Final answer
    x = 13,778.38

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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.