Home / 13,176.64-18,185.55-7,435.26

Finding the Fourth Proportional to 13,176.64, 18,185.55 and 7,435.26

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Solution

The fourth proportional to 13,176.64, 18,185.55 and 7,435.26 is: 10,261.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,176.64 : 18,185.55 = 7,435.26 : x
  2. Step 2: Convert to fraction form
    13,176.64/18,185.55 = 7,435.26/x
  3. Step 3: Cross multiply
    13,176.64x = 18,185.55 × 7,435.26
  4. Step 4: Simplify right side
    13,176.64x = 135,214,264.61
  5. Step 5: Solve for x
    x = 135,214,264.61/13,176.64
  6. Step 6: Final answer
    x = 10,261.66

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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.