Home / 18,878.32-26,039.34-14,391.64

Finding the Fourth Proportional to 18,878.32, 26,039.34 and 14,391.64

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Solution

The fourth proportional to 18,878.32, 26,039.34 and 14,391.64 is: 19,850.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,878.32 : 26,039.34 = 14,391.64 : x
  2. Step 2: Convert to fraction form
    18,878.32/26,039.34 = 14,391.64/x
  3. Step 3: Cross multiply
    18,878.32x = 26,039.34 × 14,391.64
  4. Step 4: Simplify right side
    18,878.32x = 374,748,807.12
  5. Step 5: Solve for x
    x = 374,748,807.12/18,878.32
  6. Step 6: Final answer
    x = 19,850.75

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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.