Home / 12,478.04-18,717.03-5,080.75

Finding the Fourth Proportional to 12,478.04, 18,717.03 and 5,080.75

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Solution

The fourth proportional to 12,478.04, 18,717.03 and 5,080.75 is: 7,621.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,478.04 : 18,717.03 = 5,080.75 : x
  2. Step 2: Convert to fraction form
    12,478.04/18,717.03 = 5,080.75/x
  3. Step 3: Cross multiply
    12,478.04x = 18,717.03 × 5,080.75
  4. Step 4: Simplify right side
    12,478.04x = 95,096,550.17
  5. Step 5: Solve for x
    x = 95,096,550.17/12,478.04
  6. Step 6: Final answer
    x = 7,621.11

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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.