Home / 13,246.94-18,280.99-7,279.17

Finding the Fourth Proportional to 13,246.94, 18,280.99 and 7,279.17

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Solution

The fourth proportional to 13,246.94, 18,280.99 and 7,279.17 is: 10,045.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.94 : 18,280.99 = 7,279.17 : x
  2. Step 2: Convert to fraction form
    13,246.94/18,280.99 = 7,279.17/x
  3. Step 3: Cross multiply
    13,246.94x = 18,280.99 × 7,279.17
  4. Step 4: Simplify right side
    13,246.94x = 133,070,374.52
  5. Step 5: Solve for x
    x = 133,070,374.52/13,246.94
  6. Step 6: Final answer
    x = 10,045.37

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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.