Home / 10,164.13-14,025.15-5,687.40

Finding the Fourth Proportional to 10,164.13, 14,025.15 and 5,687.40

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Solution

The fourth proportional to 10,164.13, 14,025.15 and 5,687.40 is: 7,847.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,164.13 : 14,025.15 = 5,687.40 : x
  2. Step 2: Convert to fraction form
    10,164.13/14,025.15 = 5,687.40/x
  3. Step 3: Cross multiply
    10,164.13x = 14,025.15 × 5,687.40
  4. Step 4: Simplify right side
    10,164.13x = 79,766,638.11
  5. Step 5: Solve for x
    x = 79,766,638.11/10,164.13
  6. Step 6: Final answer
    x = 7,847.86

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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.