Home / 17,877.11-24,670.58-9,920.07

Finding the Fourth Proportional to 17,877.11, 24,670.58 and 9,920.07

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Solution

The fourth proportional to 17,877.11, 24,670.58 and 9,920.07 is: 13,689.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,877.11 : 24,670.58 = 9,920.07 : x
  2. Step 2: Convert to fraction form
    17,877.11/24,670.58 = 9,920.07/x
  3. Step 3: Cross multiply
    17,877.11x = 24,670.58 × 9,920.07
  4. Step 4: Simplify right side
    17,877.11x = 244,733,830.94
  5. Step 5: Solve for x
    x = 244,733,830.94/17,877.11
  6. Step 6: Final answer
    x = 13,689.79

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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.