Home / 10,482.23-15,720.15-2,986.41

Finding the Fourth Proportional to 10,482.23, 15,720.15 and 2,986.41

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Solution

The fourth proportional to 10,482.23, 15,720.15 and 2,986.41 is: 4,478.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,482.23 : 15,720.15 = 2,986.41 : x
  2. Step 2: Convert to fraction form
    10,482.23/15,720.15 = 2,986.41/x
  3. Step 3: Cross multiply
    10,482.23x = 15,720.15 × 2,986.41
  4. Step 4: Simplify right side
    10,482.23x = 46,946,754.03
  5. Step 5: Solve for x
    x = 46,946,754.03/10,482.23
  6. Step 6: Final answer
    x = 4,478.70

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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.