Home / 18,946.84-28,386.21-11,151.40

Finding the Fourth Proportional to 18,946.84, 28,386.21 and 11,151.40

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Solution

The fourth proportional to 18,946.84, 28,386.21 and 11,151.40 is: 16,707.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,946.84 : 28,386.21 = 11,151.40 : x
  2. Step 2: Convert to fraction form
    18,946.84/28,386.21 = 11,151.40/x
  3. Step 3: Cross multiply
    18,946.84x = 28,386.21 × 11,151.40
  4. Step 4: Simplify right side
    18,946.84x = 316,545,982.19
  5. Step 5: Solve for x
    x = 316,545,982.19/18,946.84
  6. Step 6: Final answer
    x = 16,707.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.