Home / 18,143.51-25,036.70-10,186.95

Finding the Fourth Proportional to 18,143.51, 25,036.70 and 10,186.95

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Solution

The fourth proportional to 18,143.51, 25,036.70 and 10,186.95 is: 14,057.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.51 : 25,036.70 = 10,186.95 : x
  2. Step 2: Convert to fraction form
    18,143.51/25,036.70 = 10,186.95/x
  3. Step 3: Cross multiply
    18,143.51x = 25,036.70 × 10,186.95
  4. Step 4: Simplify right side
    18,143.51x = 255,047,560.13
  5. Step 5: Solve for x
    x = 255,047,560.13/18,143.51
  6. Step 6: Final answer
    x = 14,057.24

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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.