Home / 14,282.79-19,730.78-11,407.74

Finding the Fourth Proportional to 14,282.79, 19,730.78 and 11,407.74

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Solution

The fourth proportional to 14,282.79, 19,730.78 and 11,407.74 is: 15,759.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,282.79 : 19,730.78 = 11,407.74 : x
  2. Step 2: Convert to fraction form
    14,282.79/19,730.78 = 11,407.74/x
  3. Step 3: Cross multiply
    14,282.79x = 19,730.78 × 11,407.74
  4. Step 4: Simplify right side
    14,282.79x = 225,083,519.99
  5. Step 5: Solve for x
    x = 225,083,519.99/14,282.79
  6. Step 6: Final answer
    x = 15,759.08

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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.