Home / 18,365.83-25,345.38-10,407.79

Finding the Fourth Proportional to 18,365.83, 25,345.38 and 10,407.79

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Solution

The fourth proportional to 18,365.83, 25,345.38 and 10,407.79 is: 14,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,365.83 : 25,345.38 = 10,407.79 : x
  2. Step 2: Convert to fraction form
    18,365.83/25,345.38 = 10,407.79/x
  3. Step 3: Cross multiply
    18,365.83x = 25,345.38 × 10,407.79
  4. Step 4: Simplify right side
    18,365.83x = 263,789,392.51
  5. Step 5: Solve for x
    x = 263,789,392.51/18,365.83
  6. Step 6: Final answer
    x = 14,363.05

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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.