Home / 18,971.40-26,180.51-10,587.90

Finding the Fourth Proportional to 18,971.40, 26,180.51 and 10,587.90

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Solution

The fourth proportional to 18,971.40, 26,180.51 and 10,587.90 is: 14,611.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971.40 : 26,180.51 = 10,587.90 : x
  2. Step 2: Convert to fraction form
    18,971.40/26,180.51 = 10,587.90/x
  3. Step 3: Cross multiply
    18,971.40x = 26,180.51 × 10,587.90
  4. Step 4: Simplify right side
    18,971.40x = 277,196,621.83
  5. Step 5: Solve for x
    x = 277,196,621.83/18,971.40
  6. Step 6: Final answer
    x = 14,611.29

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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.