Home / 17,971.12-26,961.18-6,878.68

Finding the Fourth Proportional to 17,971.12, 26,961.18 and 6,878.68

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Solution

The fourth proportional to 17,971.12, 26,961.18 and 6,878.68 is: 10,319.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,971.12 : 26,961.18 = 6,878.68 : x
  2. Step 2: Convert to fraction form
    17,971.12/26,961.18 = 6,878.68/x
  3. Step 3: Cross multiply
    17,971.12x = 26,961.18 × 6,878.68
  4. Step 4: Simplify right side
    17,971.12x = 185,457,329.64
  5. Step 5: Solve for x
    x = 185,457,329.64/17,971.12
  6. Step 6: Final answer
    x = 10,319.74

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1.5x scale

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.