Home / 11,118.68-16,680.04-5,275.23

Finding the Fourth Proportional to 11,118.68, 16,680.04 and 5,275.23

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Solution

The fourth proportional to 11,118.68, 16,680.04 and 5,275.23 is: 7,913.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.68 : 16,680.04 = 5,275.23 : x
  2. Step 2: Convert to fraction form
    11,118.68/16,680.04 = 5,275.23/x
  3. Step 3: Cross multiply
    11,118.68x = 16,680.04 × 5,275.23
  4. Step 4: Simplify right side
    11,118.68x = 87,991,075.92
  5. Step 5: Solve for x
    x = 87,991,075.92/11,118.68
  6. Step 6: Final answer
    x = 7,913.81

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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.