Home / 19,715.17-27,206.69-11,217.27

Finding the Fourth Proportional to 19,715.17, 27,206.69 and 11,217.27

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Solution

The fourth proportional to 19,715.17, 27,206.69 and 11,217.27 is: 15,479.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,715.17 : 27,206.69 = 11,217.27 : x
  2. Step 2: Convert to fraction form
    19,715.17/27,206.69 = 11,217.27/x
  3. Step 3: Cross multiply
    19,715.17x = 27,206.69 × 11,217.27
  4. Step 4: Simplify right side
    19,715.17x = 305,184,787.54
  5. Step 5: Solve for x
    x = 305,184,787.54/19,715.17
  6. Step 6: Final answer
    x = 15,479.69

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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.