Home / 13,480.08-18,674.70-13,157.52

Finding the Fourth Proportional to 13,480.08, 18,674.70 and 13,157.52

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Solution

The fourth proportional to 13,480.08, 18,674.70 and 13,157.52 is: 18,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,480.08 : 18,674.70 = 13,157.52 : x
  2. Step 2: Convert to fraction form
    13,480.08/18,674.70 = 13,157.52/x
  3. Step 3: Cross multiply
    13,480.08x = 18,674.70 × 13,157.52
  4. Step 4: Simplify right side
    13,480.08x = 245,712,738.74
  5. Step 5: Solve for x
    x = 245,712,738.74/13,480.08
  6. Step 6: Final answer
    x = 18,227.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.