Home / 14,900.05-20,559.21-10,123.78

Finding the Fourth Proportional to 14,900.05, 20,559.21 and 10,123.78

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Solution

The fourth proportional to 14,900.05, 20,559.21 and 10,123.78 is: 13,968.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,900.05 : 20,559.21 = 10,123.78 : x
  2. Step 2: Convert to fraction form
    14,900.05/20,559.21 = 10,123.78/x
  3. Step 3: Cross multiply
    14,900.05x = 20,559.21 × 10,123.78
  4. Step 4: Simplify right side
    14,900.05x = 208,136,919.01
  5. Step 5: Solve for x
    x = 208,136,919.01/14,900.05
  6. Step 6: Final answer
    x = 13,968.87

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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.