Home / 15,914.09-23,870.23-5,380.56

Finding the Fourth Proportional to 15,914.09, 23,870.23 and 5,380.56

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Solution

The fourth proportional to 15,914.09, 23,870.23 and 5,380.56 is: 8,070.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,914.09 : 23,870.23 = 5,380.56 : x
  2. Step 2: Convert to fraction form
    15,914.09/23,870.23 = 5,380.56/x
  3. Step 3: Cross multiply
    15,914.09x = 23,870.23 × 5,380.56
  4. Step 4: Simplify right side
    15,914.09x = 128,435,191.28
  5. Step 5: Solve for x
    x = 128,435,191.28/15,914.09
  6. Step 6: Final answer
    x = 8,070.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.