Home / 13,246.40-18,278.22-7,580.54

Finding the Fourth Proportional to 13,246.40, 18,278.22 and 7,580.54

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Solution

The fourth proportional to 13,246.40, 18,278.22 and 7,580.54 is: 10,460.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.40 : 18,278.22 = 7,580.54 : x
  2. Step 2: Convert to fraction form
    13,246.40/18,278.22 = 7,580.54/x
  3. Step 3: Cross multiply
    13,246.40x = 18,278.22 × 7,580.54
  4. Step 4: Simplify right side
    13,246.40x = 138,558,777.84
  5. Step 5: Solve for x
    x = 138,558,777.84/13,246.40
  6. Step 6: Final answer
    x = 10,460.11

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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.