Home / 18,824.72-28,226.28-7,130.48

Finding the Fourth Proportional to 18,824.72, 28,226.28 and 7,130.48

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Solution

The fourth proportional to 18,824.72, 28,226.28 and 7,130.48 is: 10,691.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,824.72 : 28,226.28 = 7,130.48 : x
  2. Step 2: Convert to fraction form
    18,824.72/28,226.28 = 7,130.48/x
  3. Step 3: Cross multiply
    18,824.72x = 28,226.28 × 7,130.48
  4. Step 4: Simplify right side
    18,824.72x = 201,266,925.01
  5. Step 5: Solve for x
    x = 201,266,925.01/18,824.72
  6. Step 6: Final answer
    x = 10,691.63

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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.