Home / 18,949.20-26,130.48-12,573.56

Finding the Fourth Proportional to 18,949.20, 26,130.48 and 12,573.56

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Solution

The fourth proportional to 18,949.20, 26,130.48 and 12,573.56 is: 17,338.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.20 : 26,130.48 = 12,573.56 : x
  2. Step 2: Convert to fraction form
    18,949.20/26,130.48 = 12,573.56/x
  3. Step 3: Cross multiply
    18,949.20x = 26,130.48 × 12,573.56
  4. Step 4: Simplify right side
    18,949.20x = 328,553,158.11
  5. Step 5: Solve for x
    x = 328,553,158.11/18,949.20
  6. Step 6: Final answer
    x = 17,338.63

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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.