Home / 9,877.40-14,816.99-2,857.31

Finding the Fourth Proportional to 9,877.40, 14,816.99 and 2,857.31

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Solution

The fourth proportional to 9,877.40, 14,816.99 and 2,857.31 is: 4,286.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,877.40 : 14,816.99 = 2,857.31 : x
  2. Step 2: Convert to fraction form
    9,877.40/14,816.99 = 2,857.31/x
  3. Step 3: Cross multiply
    9,877.40x = 14,816.99 × 2,857.31
  4. Step 4: Simplify right side
    9,877.40x = 42,336,733.70
  5. Step 5: Solve for x
    x = 42,336,733.70/9,877.40
  6. Step 6: Final answer
    x = 4,286.22

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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.