Home / 18,953.10-26,155.41-11,000.10

Finding the Fourth Proportional to 18,953.10, 26,155.41 and 11,000.10

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Solution

The fourth proportional to 18,953.10, 26,155.41 and 11,000.10 is: 15,180.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,953.10 : 26,155.41 = 11,000.10 : x
  2. Step 2: Convert to fraction form
    18,953.10/26,155.41 = 11,000.10/x
  3. Step 3: Cross multiply
    18,953.10x = 26,155.41 × 11,000.10
  4. Step 4: Simplify right side
    18,953.10x = 287,712,125.54
  5. Step 5: Solve for x
    x = 287,712,125.54/18,953.10
  6. Step 6: Final answer
    x = 15,180.21

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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.