Home / 19,669.12-27,143.70-10,717.00

Finding the Fourth Proportional to 19,669.12, 27,143.70 and 10,717.00

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Solution

The fourth proportional to 19,669.12, 27,143.70 and 10,717.00 is: 14,789.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,669.12 : 27,143.70 = 10,717.00 : x
  2. Step 2: Convert to fraction form
    19,669.12/27,143.70 = 10,717.00/x
  3. Step 3: Cross multiply
    19,669.12x = 27,143.70 × 10,717.00
  4. Step 4: Simplify right side
    19,669.12x = 290,898,897.18
  5. Step 5: Solve for x
    x = 290,898,897.18/19,669.12
  6. Step 6: Final answer
    x = 14,789.63

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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.