Home / 12,376.45-17,078.73-7,341.13

Finding the Fourth Proportional to 12,376.45, 17,078.73 and 7,341.13

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Solution

The fourth proportional to 12,376.45, 17,078.73 and 7,341.13 is: 10,130.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,376.45 : 17,078.73 = 7,341.13 : x
  2. Step 2: Convert to fraction form
    12,376.45/17,078.73 = 7,341.13/x
  3. Step 3: Cross multiply
    12,376.45x = 17,078.73 × 7,341.13
  4. Step 4: Simplify right side
    12,376.45x = 125,377,177.16
  5. Step 5: Solve for x
    x = 125,377,177.16/12,376.45
  6. Step 6: Final answer
    x = 10,130.30

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1.5x scale

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.