Home / 11,113.24-15,330.68-7,332.42

Finding the Fourth Proportional to 11,113.24, 15,330.68 and 7,332.42

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Solution

The fourth proportional to 11,113.24, 15,330.68 and 7,332.42 is: 10,115.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,113.24 : 15,330.68 = 7,332.42 : x
  2. Step 2: Convert to fraction form
    11,113.24/15,330.68 = 7,332.42/x
  3. Step 3: Cross multiply
    11,113.24x = 15,330.68 × 7,332.42
  4. Step 4: Simplify right side
    11,113.24x = 112,410,984.65
  5. Step 5: Solve for x
    x = 112,410,984.65/11,113.24
  6. Step 6: Final answer
    x = 10,115.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.