Home / 15,036.62-20,750.58-8,322.71

Finding the Fourth Proportional to 15,036.62, 20,750.58 and 8,322.71

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Solution

The fourth proportional to 15,036.62, 20,750.58 and 8,322.71 is: 11,485.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,036.62 : 20,750.58 = 8,322.71 : x
  2. Step 2: Convert to fraction form
    15,036.62/20,750.58 = 8,322.71/x
  3. Step 3: Cross multiply
    15,036.62x = 20,750.58 × 8,322.71
  4. Step 4: Simplify right side
    15,036.62x = 172,701,059.67
  5. Step 5: Solve for x
    x = 172,701,059.67/15,036.62
  6. Step 6: Final answer
    x = 11,485.36

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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.