Home / 18,964.91-28,461.58-7,130.33

Finding the Fourth Proportional to 18,964.91, 28,461.58 and 7,130.33

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Solution

The fourth proportional to 18,964.91, 28,461.58 and 7,130.33 is: 10,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,964.91 : 28,461.58 = 7,130.33 : x
  2. Step 2: Convert to fraction form
    18,964.91/28,461.58 = 7,130.33/x
  3. Step 3: Cross multiply
    18,964.91x = 28,461.58 × 7,130.33
  4. Step 4: Simplify right side
    18,964.91x = 202,940,539.49
  5. Step 5: Solve for x
    x = 202,940,539.49/18,964.91
  6. Step 6: Final answer
    x = 10,700.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.