Home / 10,188.74-15,285.15-3,615.44

Finding the Fourth Proportional to 10,188.74, 15,285.15 and 3,615.44

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Solution

The fourth proportional to 10,188.74, 15,285.15 and 3,615.44 is: 5,423.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,188.74 : 15,285.15 = 3,615.44 : x
  2. Step 2: Convert to fraction form
    10,188.74/15,285.15 = 3,615.44/x
  3. Step 3: Cross multiply
    10,188.74x = 15,285.15 × 3,615.44
  4. Step 4: Simplify right side
    10,188.74x = 55,262,466.29
  5. Step 5: Solve for x
    x = 55,262,466.29/10,188.74
  6. Step 6: Final answer
    x = 5,423.88

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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.