Home / 18,869.52-26,028.76-12,898.16

Finding the Fourth Proportional to 18,869.52, 26,028.76 and 12,898.16

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Solution

The fourth proportional to 18,869.52, 26,028.76 and 12,898.16 is: 17,791.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,869.52 : 26,028.76 = 12,898.16 : x
  2. Step 2: Convert to fraction form
    18,869.52/26,028.76 = 12,898.16/x
  3. Step 3: Cross multiply
    18,869.52x = 26,028.76 × 12,898.16
  4. Step 4: Simplify right side
    18,869.52x = 335,723,111.08
  5. Step 5: Solve for x
    x = 335,723,111.08/18,869.52
  6. Step 6: Final answer
    x = 17,791.82

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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.