Home / 10,122.14-13,970.25-6,145.90

Finding the Fourth Proportional to 10,122.14, 13,970.25 and 6,145.90

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Solution

The fourth proportional to 10,122.14, 13,970.25 and 6,145.90 is: 8,482.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.14 : 13,970.25 = 6,145.90 : x
  2. Step 2: Convert to fraction form
    10,122.14/13,970.25 = 6,145.90/x
  3. Step 3: Cross multiply
    10,122.14x = 13,970.25 × 6,145.90
  4. Step 4: Simplify right side
    10,122.14x = 85,859,759.48
  5. Step 5: Solve for x
    x = 85,859,759.48/10,122.14
  6. Step 6: Final answer
    x = 8,482.37

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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.