Home / 10,915.19-16,374.16-3,519.48

Finding the Fourth Proportional to 10,915.19, 16,374.16 and 3,519.48

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Solution

The fourth proportional to 10,915.19, 16,374.16 and 3,519.48 is: 5,279.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,915.19 : 16,374.16 = 3,519.48 : x
  2. Step 2: Convert to fraction form
    10,915.19/16,374.16 = 3,519.48/x
  3. Step 3: Cross multiply
    10,915.19x = 16,374.16 × 3,519.48
  4. Step 4: Simplify right side
    10,915.19x = 57,628,528.64
  5. Step 5: Solve for x
    x = 57,628,528.64/10,915.19
  6. Step 6: Final answer
    x = 5,279.67

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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.