Home / 13,246.94-18,280.96-7,278.55

Finding the Fourth Proportional to 13,246.94, 18,280.96 and 7,278.55

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Solution

The fourth proportional to 13,246.94, 18,280.96 and 7,278.55 is: 10,044.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.94 : 18,280.96 = 7,278.55 : x
  2. Step 2: Convert to fraction form
    13,246.94/18,280.96 = 7,278.55/x
  3. Step 3: Cross multiply
    13,246.94x = 18,280.96 × 7,278.55
  4. Step 4: Simplify right side
    13,246.94x = 133,058,817.51
  5. Step 5: Solve for x
    x = 133,058,817.51/13,246.94
  6. Step 6: Final answer
    x = 10,044.49

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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.