Home / 18,142.60-25,036.86-10,185.22

Finding the Fourth Proportional to 18,142.60, 25,036.86 and 10,185.22

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Solution

The fourth proportional to 18,142.60, 25,036.86 and 10,185.22 is: 14,055.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,142.60 : 25,036.86 = 10,185.22 : x
  2. Step 2: Convert to fraction form
    18,142.60/25,036.86 = 10,185.22/x
  3. Step 3: Cross multiply
    18,142.60x = 25,036.86 × 10,185.22
  4. Step 4: Simplify right side
    18,142.60x = 255,005,927.21
  5. Step 5: Solve for x
    x = 255,005,927.21/18,142.60
  6. Step 6: Final answer
    x = 14,055.64

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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.