Home / 15,651.43-21,598.90-8,577.85

Finding the Fourth Proportional to 15,651.43, 21,598.90 and 8,577.85

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Solution

The fourth proportional to 15,651.43, 21,598.90 and 8,577.85 is: 11,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.43 : 21,598.90 = 8,577.85 : x
  2. Step 2: Convert to fraction form
    15,651.43/21,598.90 = 8,577.85/x
  3. Step 3: Cross multiply
    15,651.43x = 21,598.90 × 8,577.85
  4. Step 4: Simplify right side
    15,651.43x = 185,272,137.67
  5. Step 5: Solve for x
    x = 185,272,137.67/15,651.43
  6. Step 6: Final answer
    x = 11,837.40

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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.