Home / 10,001.55-15,004.35-3,428.40

Finding the Fourth Proportional to 10,001.55, 15,004.35 and 3,428.40

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Solution

The fourth proportional to 10,001.55, 15,004.35 and 3,428.40 is: 5,143.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,001.55 : 15,004.35 = 3,428.40 : x
  2. Step 2: Convert to fraction form
    10,001.55/15,004.35 = 3,428.40/x
  3. Step 3: Cross multiply
    10,001.55x = 15,004.35 × 3,428.40
  4. Step 4: Simplify right side
    10,001.55x = 51,440,913.54
  5. Step 5: Solve for x
    x = 51,440,913.54/10,001.55
  6. Step 6: Final answer
    x = 5,143.29

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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.