Home / 10,038.05-13,830.20-6,629

Finding the Fourth Proportional to 10,038.05, 13,830.20 and 6,629

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Solution

The fourth proportional to 10,038.05, 13,830.20 and 6,629 is: 9,133.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,038.05 : 13,830.20 = 6,629 : x
  2. Step 2: Convert to fraction form
    10,038.05/13,830.20 = 6,629/x
  3. Step 3: Cross multiply
    10,038.05x = 13,830.20 × 6,629
  4. Step 4: Simplify right side
    10,038.05x = 91,680,395.80
  5. Step 5: Solve for x
    x = 91,680,395.80/10,038.05
  6. Step 6: Final answer
    x = 9,133.29

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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.