Home / 15,834.71-21,852.24-8,761.61

Finding the Fourth Proportional to 15,834.71, 21,852.24 and 8,761.61

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Solution

The fourth proportional to 15,834.71, 21,852.24 and 8,761.61 is: 12,091.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.71 : 21,852.24 = 8,761.61 : x
  2. Step 2: Convert to fraction form
    15,834.71/21,852.24 = 8,761.61/x
  3. Step 3: Cross multiply
    15,834.71x = 21,852.24 × 8,761.61
  4. Step 4: Simplify right side
    15,834.71x = 191,460,804.51
  5. Step 5: Solve for x
    x = 191,460,804.51/15,834.71
  6. Step 6: Final answer
    x = 12,091.21

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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.