Home / 18,789.63-25,929.69-10,406.13

Finding the Fourth Proportional to 18,789.63, 25,929.69 and 10,406.13

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Solution

The fourth proportional to 18,789.63, 25,929.69 and 10,406.13 is: 14,360.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,789.63 : 25,929.69 = 10,406.13 : x
  2. Step 2: Convert to fraction form
    18,789.63/25,929.69 = 10,406.13/x
  3. Step 3: Cross multiply
    18,789.63x = 25,929.69 × 10,406.13
  4. Step 4: Simplify right side
    18,789.63x = 269,827,725.00
  5. Step 5: Solve for x
    x = 269,827,725.00/18,789.63
  6. Step 6: Final answer
    x = 14,360.46

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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.