Home / 10,123.04-15,186.48-3,198.56

Finding the Fourth Proportional to 10,123.04, 15,186.48 and 3,198.56

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Solution

The fourth proportional to 10,123.04, 15,186.48 and 3,198.56 is: 4,798.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,123.04 : 15,186.48 = 3,198.56 : x
  2. Step 2: Convert to fraction form
    10,123.04/15,186.48 = 3,198.56/x
  3. Step 3: Cross multiply
    10,123.04x = 15,186.48 × 3,198.56
  4. Step 4: Simplify right side
    10,123.04x = 48,574,867.47
  5. Step 5: Solve for x
    x = 48,574,867.47/10,123.04
  6. Step 6: Final answer
    x = 4,798.45

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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.