Home / 15,759.26-21,746.91-9,790.81

Finding the Fourth Proportional to 15,759.26, 21,746.91 and 9,790.81

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Solution

The fourth proportional to 15,759.26, 21,746.91 and 9,790.81 is: 13,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,759.26 : 21,746.91 = 9,790.81 : x
  2. Step 2: Convert to fraction form
    15,759.26/21,746.91 = 9,790.81/x
  3. Step 3: Cross multiply
    15,759.26x = 21,746.91 × 9,790.81
  4. Step 4: Simplify right side
    15,759.26x = 212,919,846.25
  5. Step 5: Solve for x
    x = 212,919,846.25/15,759.26
  6. Step 6: Final answer
    x = 13,510.78

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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.