Home / 13,447.88-18,558.52-7,398.38

Finding the Fourth Proportional to 13,447.88, 18,558.52 and 7,398.38

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Solution

The fourth proportional to 13,447.88, 18,558.52 and 7,398.38 is: 10,210.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,447.88 : 18,558.52 = 7,398.38 : x
  2. Step 2: Convert to fraction form
    13,447.88/18,558.52 = 7,398.38/x
  3. Step 3: Cross multiply
    13,447.88x = 18,558.52 × 7,398.38
  4. Step 4: Simplify right side
    13,447.88x = 137,302,890.41
  5. Step 5: Solve for x
    x = 137,302,890.41/13,447.88
  6. Step 6: Final answer
    x = 10,210.01

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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.