Home / 10,354.24-14,288.80-5,638.44

Finding the Fourth Proportional to 10,354.24, 14,288.80 and 5,638.44

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Solution

The fourth proportional to 10,354.24, 14,288.80 and 5,638.44 is: 7,781.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.24 : 14,288.80 = 5,638.44 : x
  2. Step 2: Convert to fraction form
    10,354.24/14,288.80 = 5,638.44/x
  3. Step 3: Cross multiply
    10,354.24x = 14,288.80 × 5,638.44
  4. Step 4: Simplify right side
    10,354.24x = 80,566,541.47
  5. Step 5: Solve for x
    x = 80,566,541.47/10,354.24
  6. Step 6: Final answer
    x = 7,781.02

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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.