Home / 18,785.88-25,925.10-10,403.16

Finding the Fourth Proportional to 18,785.88, 25,925.10 and 10,403.16

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Solution

The fourth proportional to 18,785.88, 25,925.10 and 10,403.16 is: 14,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,785.88 : 25,925.10 = 10,403.16 : x
  2. Step 2: Convert to fraction form
    18,785.88/25,925.10 = 10,403.16/x
  3. Step 3: Cross multiply
    18,785.88x = 25,925.10 × 10,403.16
  4. Step 4: Simplify right side
    18,785.88x = 269,702,963.32
  5. Step 5: Solve for x
    x = 269,702,963.32/18,785.88
  6. Step 6: Final answer
    x = 14,356.69

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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.