Home / 15,030.56-20,694.72-13,236.82

Finding the Fourth Proportional to 15,030.56, 20,694.72 and 13,236.82

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Solution

The fourth proportional to 15,030.56, 20,694.72 and 13,236.82 is: 18,225.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,030.56 : 20,694.72 = 13,236.82 : x
  2. Step 2: Convert to fraction form
    15,030.56/20,694.72 = 13,236.82/x
  3. Step 3: Cross multiply
    15,030.56x = 20,694.72 × 13,236.82
  4. Step 4: Simplify right side
    15,030.56x = 273,932,169.81
  5. Step 5: Solve for x
    x = 273,932,169.81/15,030.56
  6. Step 6: Final answer
    x = 18,225.02

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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.