Home / 10,657.49-15,986.29-2,759.45

Finding the Fourth Proportional to 10,657.49, 15,986.29 and 2,759.45

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Solution

The fourth proportional to 10,657.49, 15,986.29 and 2,759.45 is: 4,139.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,657.49 : 15,986.29 = 2,759.45 : x
  2. Step 2: Convert to fraction form
    10,657.49/15,986.29 = 2,759.45/x
  3. Step 3: Cross multiply
    10,657.49x = 15,986.29 × 2,759.45
  4. Step 4: Simplify right side
    10,657.49x = 44,113,367.94
  5. Step 5: Solve for x
    x = 44,113,367.94/10,657.49
  6. Step 6: Final answer
    x = 4,139.19

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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.