Home / 13,130.69-19,707.41-6,895.10

Finding the Fourth Proportional to 13,130.69, 19,707.41 and 6,895.10

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Solution

The fourth proportional to 13,130.69, 19,707.41 and 6,895.10 is: 10,348.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.69 : 19,707.41 = 6,895.10 : x
  2. Step 2: Convert to fraction form
    13,130.69/19,707.41 = 6,895.10/x
  3. Step 3: Cross multiply
    13,130.69x = 19,707.41 × 6,895.10
  4. Step 4: Simplify right side
    13,130.69x = 135,884,629.20
  5. Step 5: Solve for x
    x = 135,884,629.20/13,130.69
  6. Step 6: Final answer
    x = 10,348.63

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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.