Home / 18,303.52-25,258.89-10,345.78

Finding the Fourth Proportional to 18,303.52, 25,258.89 and 10,345.78

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Solution

The fourth proportional to 18,303.52, 25,258.89 and 10,345.78 is: 14,277.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,303.52 : 25,258.89 = 10,345.78 : x
  2. Step 2: Convert to fraction form
    18,303.52/25,258.89 = 10,345.78/x
  3. Step 3: Cross multiply
    18,303.52x = 25,258.89 × 10,345.78
  4. Step 4: Simplify right side
    18,303.52x = 261,322,918.98
  5. Step 5: Solve for x
    x = 261,322,918.98/18,303.52
  6. Step 6: Final answer
    x = 14,277.19

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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.