Home / 18,878.28-26,013.63-14,603.38

Finding the Fourth Proportional to 18,878.28, 26,013.63 and 14,603.38

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Solution

The fourth proportional to 18,878.28, 26,013.63 and 14,603.38 is: 20,122.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.28 : 26,013.63 = 14,603.38 : x
  2. Step 2: Convert to fraction form
    18,878.28/26,013.63 = 14,603.38/x
  3. Step 3: Cross multiply
    18,878.28x = 26,013.63 × 14,603.38
  4. Step 4: Simplify right side
    18,878.28x = 379,886,913.80
  5. Step 5: Solve for x
    x = 379,886,913.80/18,878.28
  6. Step 6: Final answer
    x = 20,122.97

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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.