Home / 13,246.20-18,280.06-7,277.49

Finding the Fourth Proportional to 13,246.20, 18,280.06 and 7,277.49

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Solution

The fourth proportional to 13,246.20, 18,280.06 and 7,277.49 is: 10,043.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.20 : 18,280.06 = 7,277.49 : x
  2. Step 2: Convert to fraction form
    13,246.20/18,280.06 = 7,277.49/x
  3. Step 3: Cross multiply
    13,246.20x = 18,280.06 × 7,277.49
  4. Step 4: Simplify right side
    13,246.20x = 133,032,935.66
  5. Step 5: Solve for x
    x = 133,032,935.66/13,246.20
  6. Step 6: Final answer
    x = 10,043.10

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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.