Home / 18,753.02-25,890.39-11,689.01

Finding the Fourth Proportional to 18,753.02, 25,890.39 and 11,689.01

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Solution

The fourth proportional to 18,753.02, 25,890.39 and 11,689.01 is: 16,137.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753.02 : 25,890.39 = 11,689.01 : x
  2. Step 2: Convert to fraction form
    18,753.02/25,890.39 = 11,689.01/x
  3. Step 3: Cross multiply
    18,753.02x = 25,890.39 × 11,689.01
  4. Step 4: Simplify right side
    18,753.02x = 302,632,898.16
  5. Step 5: Solve for x
    x = 302,632,898.16/18,753.02
  6. Step 6: Final answer
    x = 16,137.83

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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.