Home / 10,222.38-15,322.64-5,287.05

Finding the Fourth Proportional to 10,222.38, 15,322.64 and 5,287.05

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Solution

The fourth proportional to 10,222.38, 15,322.64 and 5,287.05 is: 7,924.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,222.38 : 15,322.64 = 5,287.05 : x
  2. Step 2: Convert to fraction form
    10,222.38/15,322.64 = 5,287.05/x
  3. Step 3: Cross multiply
    10,222.38x = 15,322.64 × 5,287.05
  4. Step 4: Simplify right side
    10,222.38x = 81,011,537.38
  5. Step 5: Solve for x
    x = 81,011,537.38/10,222.38
  6. Step 6: Final answer
    x = 7,924.92

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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.