Home / 10,121.72-13,967.62-5,870.02

Finding the Fourth Proportional to 10,121.72, 13,967.62 and 5,870.02

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Solution

The fourth proportional to 10,121.72, 13,967.62 and 5,870.02 is: 8,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.72 : 13,967.62 = 5,870.02 : x
  2. Step 2: Convert to fraction form
    10,121.72/13,967.62 = 5,870.02/x
  3. Step 3: Cross multiply
    10,121.72x = 13,967.62 × 5,870.02
  4. Step 4: Simplify right side
    10,121.72x = 81,990,208.75
  5. Step 5: Solve for x
    x = 81,990,208.75/10,121.72
  6. Step 6: Final answer
    x = 8,100.42

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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.