Home / 15,784.66-23,670.10-8,387.34

Finding the Fourth Proportional to 15,784.66, 23,670.10 and 8,387.34

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Solution

The fourth proportional to 15,784.66, 23,670.10 and 8,387.34 is: 12,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,784.66 : 23,670.10 = 8,387.34 : x
  2. Step 2: Convert to fraction form
    15,784.66/23,670.10 = 8,387.34/x
  3. Step 3: Cross multiply
    15,784.66x = 23,670.10 × 8,387.34
  4. Step 4: Simplify right side
    15,784.66x = 198,529,176.53
  5. Step 5: Solve for x
    x = 198,529,176.53/15,784.66
  6. Step 6: Final answer
    x = 12,577.35

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.