Home / 18,921.40-26,116.04-10,968

Finding the Fourth Proportional to 18,921.40, 26,116.04 and 10,968

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Solution

The fourth proportional to 18,921.40, 26,116.04 and 10,968 is: 15,138.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,921.40 : 26,116.04 = 10,968 : x
  2. Step 2: Convert to fraction form
    18,921.40/26,116.04 = 10,968/x
  3. Step 3: Cross multiply
    18,921.40x = 26,116.04 × 10,968
  4. Step 4: Simplify right side
    18,921.40x = 286,440,726.72
  5. Step 5: Solve for x
    x = 286,440,726.72/18,921.40
  6. Step 6: Final answer
    x = 15,138.45

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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.