Home / 10,354.64-14,289.26-5,638.94

Finding the Fourth Proportional to 10,354.64, 14,289.26 and 5,638.94

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Solution

The fourth proportional to 10,354.64, 14,289.26 and 5,638.94 is: 7,781.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.64 : 14,289.26 = 5,638.94 : x
  2. Step 2: Convert to fraction form
    10,354.64/14,289.26 = 5,638.94/x
  3. Step 3: Cross multiply
    10,354.64x = 14,289.26 × 5,638.94
  4. Step 4: Simplify right side
    10,354.64x = 80,576,279.78
  5. Step 5: Solve for x
    x = 80,576,279.78/10,354.64
  6. Step 6: Final answer
    x = 7,781.66

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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.