Home / 19,641.11-27,103.91-10,688.63

Finding the Fourth Proportional to 19,641.11, 27,103.91 and 10,688.63

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Solution

The fourth proportional to 19,641.11, 27,103.91 and 10,688.63 is: 14,749.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,641.11 : 27,103.91 = 10,688.63 : x
  2. Step 2: Convert to fraction form
    19,641.11/27,103.91 = 10,688.63/x
  3. Step 3: Cross multiply
    19,641.11x = 27,103.91 × 10,688.63
  4. Step 4: Simplify right side
    19,641.11x = 289,703,476.58
  5. Step 5: Solve for x
    x = 289,703,476.58/19,641.11
  6. Step 6: Final answer
    x = 14,749.86

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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.