Home / 15,834.83-21,852-8,761.23

Finding the Fourth Proportional to 15,834.83, 21,852 and 8,761.23

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Solution

The fourth proportional to 15,834.83, 21,852 and 8,761.23 is: 12,090.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.83 : 21,852 = 8,761.23 : x
  2. Step 2: Convert to fraction form
    15,834.83/21,852 = 8,761.23/x
  3. Step 3: Cross multiply
    15,834.83x = 21,852 × 8,761.23
  4. Step 4: Simplify right side
    15,834.83x = 191,450,397.96
  5. Step 5: Solve for x
    x = 191,450,397.96/15,834.83
  6. Step 6: Final answer
    x = 12,090.47

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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.