Home / 19,878.16-27,432.57-10,926.50

Finding the Fourth Proportional to 19,878.16, 27,432.57 and 10,926.50

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Solution

The fourth proportional to 19,878.16, 27,432.57 and 10,926.50 is: 15,078.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,878.16 : 27,432.57 = 10,926.50 : x
  2. Step 2: Convert to fraction form
    19,878.16/27,432.57 = 10,926.50/x
  3. Step 3: Cross multiply
    19,878.16x = 27,432.57 × 10,926.50
  4. Step 4: Simplify right side
    19,878.16x = 299,741,879.92
  5. Step 5: Solve for x
    x = 299,741,879.92/19,878.16
  6. Step 6: Final answer
    x = 15,078.96

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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.