Home / 10,021.60-13,827.84-5,714.08

Finding the Fourth Proportional to 10,021.60, 13,827.84 and 5,714.08

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Solution

The fourth proportional to 10,021.60, 13,827.84 and 5,714.08 is: 7,884.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,021.60 : 13,827.84 = 5,714.08 : x
  2. Step 2: Convert to fraction form
    10,021.60/13,827.84 = 5,714.08/x
  3. Step 3: Cross multiply
    10,021.60x = 13,827.84 × 5,714.08
  4. Step 4: Simplify right side
    10,021.60x = 79,013,383.99
  5. Step 5: Solve for x
    x = 79,013,383.99/10,021.60
  6. Step 6: Final answer
    x = 7,884.31

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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.