Home / 18,143.88-25,038.59-10,186.16

Finding the Fourth Proportional to 18,143.88, 25,038.59 and 10,186.16

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Solution

The fourth proportional to 18,143.88, 25,038.59 and 10,186.16 is: 14,056.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.88 : 25,038.59 = 10,186.16 : x
  2. Step 2: Convert to fraction form
    18,143.88/25,038.59 = 10,186.16/x
  3. Step 3: Cross multiply
    18,143.88x = 25,038.59 × 10,186.16
  4. Step 4: Simplify right side
    18,143.88x = 255,047,032.98
  5. Step 5: Solve for x
    x = 255,047,032.98/18,143.88
  6. Step 6: Final answer
    x = 14,056.92

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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.