Home / 12,375.17-18,559-10,401.40

Finding the Fourth Proportional to 12,375.17, 18,559 and 10,401.40

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Solution

The fourth proportional to 12,375.17, 18,559 and 10,401.40 is: 15,598.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,375.17 : 18,559 = 10,401.40 : x
  2. Step 2: Convert to fraction form
    12,375.17/18,559 = 10,401.40/x
  3. Step 3: Cross multiply
    12,375.17x = 18,559 × 10,401.40
  4. Step 4: Simplify right side
    12,375.17x = 193,039,582.60
  5. Step 5: Solve for x
    x = 193,039,582.60/12,375.17
  6. Step 6: Final answer
    x = 15,598.94

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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.