Home / 14,139.93-19,515.51-8,175.07

Finding the Fourth Proportional to 14,139.93, 19,515.51 and 8,175.07

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Solution

The fourth proportional to 14,139.93, 19,515.51 and 8,175.07 is: 11,282.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.93 : 19,515.51 = 8,175.07 : x
  2. Step 2: Convert to fraction form
    14,139.93/19,515.51 = 8,175.07/x
  3. Step 3: Cross multiply
    14,139.93x = 19,515.51 × 8,175.07
  4. Step 4: Simplify right side
    14,139.93x = 159,540,660.34
  5. Step 5: Solve for x
    x = 159,540,660.34/14,139.93
  6. Step 6: Final answer
    x = 11,282.99

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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.