Home / 13,502.81-18,628.67-8,458.25

Finding the Fourth Proportional to 13,502.81, 18,628.67 and 8,458.25

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Solution

The fourth proportional to 13,502.81, 18,628.67 and 8,458.25 is: 11,669.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,502.81 : 18,628.67 = 8,458.25 : x
  2. Step 2: Convert to fraction form
    13,502.81/18,628.67 = 8,458.25/x
  3. Step 3: Cross multiply
    13,502.81x = 18,628.67 × 8,458.25
  4. Step 4: Simplify right side
    13,502.81x = 157,565,854.88
  5. Step 5: Solve for x
    x = 157,565,854.88/13,502.81
  6. Step 6: Final answer
    x = 11,669.12

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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.