Home / 15,467.88-21,401.91-13,482.57

Finding the Fourth Proportional to 15,467.88, 21,401.91 and 13,482.57

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Solution

The fourth proportional to 15,467.88, 21,401.91 and 13,482.57 is: 18,654.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,467.88 : 21,401.91 = 13,482.57 : x
  2. Step 2: Convert to fraction form
    15,467.88/21,401.91 = 13,482.57/x
  3. Step 3: Cross multiply
    15,467.88x = 21,401.91 × 13,482.57
  4. Step 4: Simplify right side
    15,467.88x = 288,552,749.71
  5. Step 5: Solve for x
    x = 288,552,749.71/15,467.88
  6. Step 6: Final answer
    x = 18,654.96

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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.