Home / 10,489.93-15,740.36-4,254.55

Finding the Fourth Proportional to 10,489.93, 15,740.36 and 4,254.55

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Solution

The fourth proportional to 10,489.93, 15,740.36 and 4,254.55 is: 6,384.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,489.93 : 15,740.36 = 4,254.55 : x
  2. Step 2: Convert to fraction form
    10,489.93/15,740.36 = 4,254.55/x
  3. Step 3: Cross multiply
    10,489.93x = 15,740.36 × 4,254.55
  4. Step 4: Simplify right side
    10,489.93x = 66,968,148.64
  5. Step 5: Solve for x
    x = 66,968,148.64/10,489.93
  6. Step 6: Final answer
    x = 6,384.04

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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.