Home / 11,420.46-15,759.37-6,943.59

Finding the Fourth Proportional to 11,420.46, 15,759.37 and 6,943.59

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Solution

The fourth proportional to 11,420.46, 15,759.37 and 6,943.59 is: 9,581.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.46 : 15,759.37 = 6,943.59 : x
  2. Step 2: Convert to fraction form
    11,420.46/15,759.37 = 6,943.59/x
  3. Step 3: Cross multiply
    11,420.46x = 15,759.37 × 6,943.59
  4. Step 4: Simplify right side
    11,420.46x = 109,426,603.94
  5. Step 5: Solve for x
    x = 109,426,603.94/11,420.46
  6. Step 6: Final answer
    x = 9,581.63

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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.