Home / 10,130.09-13,878.30-9,751.38

Finding the Fourth Proportional to 10,130.09, 13,878.30 and 9,751.38

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Solution

The fourth proportional to 10,130.09, 13,878.30 and 9,751.38 is: 13,359.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,130.09 : 13,878.30 = 9,751.38 : x
  2. Step 2: Convert to fraction form
    10,130.09/13,878.30 = 9,751.38/x
  3. Step 3: Cross multiply
    10,130.09x = 13,878.30 × 9,751.38
  4. Step 4: Simplify right side
    10,130.09x = 135,332,577.05
  5. Step 5: Solve for x
    x = 135,332,577.05/10,130.09
  6. Step 6: Final answer
    x = 13,359.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.