Home / 13,246.28-18,280.26-7,278.32

Finding the Fourth Proportional to 13,246.28, 18,280.26 and 7,278.32

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Solution

The fourth proportional to 13,246.28, 18,280.26 and 7,278.32 is: 10,044.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.28 : 18,280.26 = 7,278.32 : x
  2. Step 2: Convert to fraction form
    13,246.28/18,280.26 = 7,278.32/x
  3. Step 3: Cross multiply
    13,246.28x = 18,280.26 × 7,278.32
  4. Step 4: Simplify right side
    13,246.28x = 133,049,581.96
  5. Step 5: Solve for x
    x = 133,049,581.96/13,246.28
  6. Step 6: Final answer
    x = 10,044.30

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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.