Home / 19,403.63-26,776.69-10,789.47

Finding the Fourth Proportional to 19,403.63, 26,776.69 and 10,789.47

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Solution

The fourth proportional to 19,403.63, 26,776.69 and 10,789.47 is: 14,889.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,403.63 : 26,776.69 = 10,789.47 : x
  2. Step 2: Convert to fraction form
    19,403.63/26,776.69 = 10,789.47/x
  3. Step 3: Cross multiply
    19,403.63x = 26,776.69 × 10,789.47
  4. Step 4: Simplify right side
    19,403.63x = 288,906,320.43
  5. Step 5: Solve for x
    x = 288,906,320.43/19,403.63
  6. Step 6: Final answer
    x = 14,889.29

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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.