Home / 11,208.32-15,462.28-7,230.71

Finding the Fourth Proportional to 11,208.32, 15,462.28 and 7,230.71

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Solution

The fourth proportional to 11,208.32, 15,462.28 and 7,230.71 is: 9,975.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,208.32 : 15,462.28 = 7,230.71 : x
  2. Step 2: Convert to fraction form
    11,208.32/15,462.28 = 7,230.71/x
  3. Step 3: Cross multiply
    11,208.32x = 15,462.28 × 7,230.71
  4. Step 4: Simplify right side
    11,208.32x = 111,803,226.47
  5. Step 5: Solve for x
    x = 111,803,226.47/11,208.32
  6. Step 6: Final answer
    x = 9,975.03

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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.