Home / 11,880.02-17,818.50-3,115.64

Finding the Fourth Proportional to 11,880.02, 17,818.50 and 3,115.64

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Solution

The fourth proportional to 11,880.02, 17,818.50 and 3,115.64 is: 4,673.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,880.02 : 17,818.50 = 3,115.64 : x
  2. Step 2: Convert to fraction form
    11,880.02/17,818.50 = 3,115.64/x
  3. Step 3: Cross multiply
    11,880.02x = 17,818.50 × 3,115.64
  4. Step 4: Simplify right side
    11,880.02x = 55,516,031.34
  5. Step 5: Solve for x
    x = 55,516,031.34/11,880.02
  6. Step 6: Final answer
    x = 4,673.06

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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.