Home / 10,383.58-15,573.21-2,988.55

Finding the Fourth Proportional to 10,383.58, 15,573.21 and 2,988.55

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Solution

The fourth proportional to 10,383.58, 15,573.21 and 2,988.55 is: 4,482.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,383.58 : 15,573.21 = 2,988.55 : x
  2. Step 2: Convert to fraction form
    10,383.58/15,573.21 = 2,988.55/x
  3. Step 3: Cross multiply
    10,383.58x = 15,573.21 × 2,988.55
  4. Step 4: Simplify right side
    10,383.58x = 46,541,316.75
  5. Step 5: Solve for x
    x = 46,541,316.75/10,383.58
  6. Step 6: Final answer
    x = 4,482.20

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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.