Home / 18,897.24-26,078.20-10,513.76

Finding the Fourth Proportional to 18,897.24, 26,078.20 and 10,513.76

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Solution

The fourth proportional to 18,897.24, 26,078.20 and 10,513.76 is: 14,508.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,897.24 : 26,078.20 = 10,513.76 : x
  2. Step 2: Convert to fraction form
    18,897.24/26,078.20 = 10,513.76/x
  3. Step 3: Cross multiply
    18,897.24x = 26,078.20 × 10,513.76
  4. Step 4: Simplify right side
    18,897.24x = 274,179,936.03
  5. Step 5: Solve for x
    x = 274,179,936.03/18,897.24
  6. Step 6: Final answer
    x = 14,508.99

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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.