Home / 12,459.30-18,689.02-3,694.28

Finding the Fourth Proportional to 12,459.30, 18,689.02 and 3,694.28

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Solution

The fourth proportional to 12,459.30, 18,689.02 and 3,694.28 is: 5,541.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.30 : 18,689.02 = 3,694.28 : x
  2. Step 2: Convert to fraction form
    12,459.30/18,689.02 = 3,694.28/x
  3. Step 3: Cross multiply
    12,459.30x = 18,689.02 × 3,694.28
  4. Step 4: Simplify right side
    12,459.30x = 69,042,472.81
  5. Step 5: Solve for x
    x = 69,042,472.81/12,459.30
  6. Step 6: Final answer
    x = 5,541.44

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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.