Home / 10,982.10-15,157.79-8,587.34

Finding the Fourth Proportional to 10,982.10, 15,157.79 and 8,587.34

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Solution

The fourth proportional to 10,982.10, 15,157.79 and 8,587.34 is: 11,852.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,982.10 : 15,157.79 = 8,587.34 : x
  2. Step 2: Convert to fraction form
    10,982.10/15,157.79 = 8,587.34/x
  3. Step 3: Cross multiply
    10,982.10x = 15,157.79 × 8,587.34
  4. Step 4: Simplify right side
    10,982.10x = 130,165,042.06
  5. Step 5: Solve for x
    x = 130,165,042.06/10,982.10
  6. Step 6: Final answer
    x = 11,852.47

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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.